Spectacular Celestial Fireworks Commemorate Perihelion Passage of Rosetta’s Comet

Sequence of OSIRIS narrow-angle camera images from 12 August 2015, just a few hours before the comet reached perihelion. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

Sequence of OSIRIS narrow-angle camera images from 12 August 2015, just a few hours before the comet reached perihelion. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA
See hi res images below[/caption]

A spectacular display of celestial fireworks like none ever witnessed before, burst forth from Rosetta’s comet right on time – commemorating the Europeans spacecraft’s history making perihelion passage after a year long wait of mounting excitement and breathtaking science.

As the European Space Agency’s (ESA’s) Rosetta marked its closest approach to the Sun (perihelion) at exactly 02:03 GMT on Thursday, August 13, 2015, while orbiting Comet 67P/Churyumov–Gerasimenko, its suite of 11 state-of-the-art science instruments, cameras and spectrometers were trained on the utterly bizarre bi-lobed body to capture every facet of the comet’s nature and environment for analysis by the gushing science teams.

And the perihelion passage did not disappoint – living up to its advance billing by spewing forth an unmatched display of otherworldly outbursts of gas jets and dust particles due to surface heating from the warming effects of the sun as the comet edged ever closer, coming within 186 million kilometers of mighty Sol.

ESA has released a brand new series of images, shown above and below, documenting sparks flying – as seen by Rosetta’s OSIRIS narrow-angle camera and NAVCAM wider angle cameras on August 12 and 13 – just a few hours before the rubby ducky shaped comet reached perihelion along its 6.5-year orbit around the sun.

Images of Comet 67P/C-G taken with OSIRIS narrow-angle camera on 12 August 2015, just a few hours before the comet reached perihelion, about 330 km from the comet. The individual images are also available below. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA
Images of Comet 67P/C-G taken with OSIRIS narrow-angle camera on 12 August 2015, just a few hours before the comet reached perihelion, about 330 km from the comet. The individual images are also available below. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

Indeed the navcam camera image below was taken just an hour before the moment of perihelion, at 01:04 GMT, from a distance of around 327 kilometers!

Frozen ices are seen blasting away from the comet in a hail of gas and dust particles as rising solar radiation heats the nucleus and fortifies the comet’s atmosphere, or coma, and its tail.

Comet at perihelion.  Single frame Rosetta navigation camera image acquired at 01:04 GMT on 13 August 2015, just one hour before Comet 67P/Churyumov–Gerasimenko reached perihelion – the closest point to the Sun along its 6.5-year orbit. The image was taken around 327 km from the comet. It has a resolution of 28 m/pixel, measures 28.6 km across and was processed to bring out the details of the comet's activity. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0
Comet at perihelion. Single frame Rosetta navigation camera image acquired at 01:04 GMT on 13 August 2015, just one hour before Comet 67P/Churyumov–Gerasimenko reached perihelion – the closest point to the Sun along its 6.5-year orbit. The image was taken around 327 km from the comet. It has a resolution of 28 m/pixel, measures 28.6 km across and was processed to bring out the details of the comet’s activity. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0

After a decade long chase of over 6.4 billion kilometers (4 Billion miles), ESA’s Rosetta spacecraft arrived at the pockmarked Comet 67P/Churyumov-Gerasimenko exactly a year ago on Aug. 6, 2014 for history’s first ever attempt to orbit a comet for long term study.

In the interim, Rosetta also deployed the piggybacked Philae lander for history’s first landing on a comet on Nov. 12, 2014.

In fact, measurements from Rosetta’s science instruments confirm the comet is belching a thousand times more water vapor today than was observed during Rosetta’s arrival a year ago. It’s spewing some 300 kg of water vapour every second now, compared to just 300 g per second upon arrival. That equates to two bathtubs per second now in Aug. 2015 vs. two small glasses of water per second in Aug. 2014.

Besides gas, 1000 kg of dust per second is simultaneously erupting from the nucleus, “creating dangerous working conditions for Rosetta,” says ESA.

“In recent days, we have been forced to move even further away from the comet. We’re currently at a distance of between 325 km and 340 km this week, in a region where Rosetta’s startrackers can operate without being confused by excessive dust levels – without them working properly, Rosetta can’t position itself in space,” comments Sylvain Lodiot, ESA’s spacecraft operations manager, in an ESA statement.

Here’s an OSIRIS image taken just hours prior to perihelion, that’s included in the lead animation of this story.

OSIRIS NAC image of Comet 67P/C-G taken on 12 August 2015 at 17:35 GMT. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA
OSIRIS NAC image of Comet 67P/C-G taken on 12 August 2015 at 17:35 GMT. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

The period of the comet’s peak intensity, as seen in all these images, is expected to continue past perihelion for several weeks at least and fulfils the dreams of a scientific goldmine for all the research teams and hundreds of researchers involved with Rosetta and Philae.

“Activity will remain high like this for many weeks, and we’re certainly looking forward to seeing how many more jets and outburst events we catch in the act, as we have already witnessed in the last few weeks,” says Nicolas Altobelli, acting Rosetta project scientist.

And Rosetta still has lots of fuel, and just as important – funding – to plus up its ground breaking science discoveries.

ESA recently granted Rosetta a 9 month mission extension to continue its research activities as well as having been given the chance to accomplish one final and daring historic challenge.

Engineers will attempt to boldly go and land the probe on the undulating surface of the comet.

Officials with the European Space Agency (ESA) gave the “GO” on June 23 saying “The adventure continues” for Rosetta to march forward with mission operations until the end of September 2016.

If all continues to go well “the spacecraft will most likely be landed on the surface of Comet 67P/Churyumov-Gerasimenko” said ESA.

ESA Philae lander approaches comet 67P/Churyumov–Gerasimenko on 12 November 2014 as imaged from Rosetta orbiter after deployment and during seven hour long approach for 1st ever  touchdown on a comets surface.  Credit:  ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA - Composition by Marco Di Lorenzo/Ken Kremer
ESA Philae lander approaches comet 67P/Churyumov–Gerasimenko on 12 November 2014 as imaged from Rosetta orbiter after deployment and during seven hour long approach for 1st ever touchdown on a comets surface. Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA – Composition by Marco Di Lorenzo/Ken Kremer

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Jets of gas and dust are blasting from the active neck of comet 67P/Churyumov-Gerasimenko in this photo mosaic assembled from four images taken on 26 September 2014 by the European Space Agency’s Rosetta spacecraft at a distance of 26.3 kilometers (16 miles) from the center of the comet. Credit: ESA/Rosetta/NAVCAM/Marco Di Lorenzo/Ken Kremer/kenkremer.com
Jets of gas and dust are blasting from the active neck of comet 67P/Churyumov-Gerasimenko in this photo mosaic assembled from four images taken on 26 September 2014 by the European Space Agency’s Rosetta spacecraft at a distance of 26.3 kilometers (16 miles) from the center of the comet. Credit: ESA/Rosetta/NAVCAM/Marco Di Lorenzo/Ken Kremer/kenkremer.com

Ride Along with New Horizons on its Pluto Flyby

On July 14, 2015, after nine and a half years journeying across the Solar System, NASA’s New Horizons spacecraft made its historic close pass of Pluto and its moon Charon. Traveling a relative velocity of nearly 13.8 km/s (that’s almost 31,000 mph!) New Horizons passed through the Pluto system in a matter of hours but the views it captured from approach to departure held the world spellbound with their unexpected beauty. Those images and data – along with a bit of imagination – have been used by space imaging enthusiast Björn Jónsson to create an animation of New Horizons’ Pluto pass as if we were traveling along with the spacecraft – check it out above.

You can find more science images and discoveries about Pluto and Charon from New Horizons here, and see more renderings and animations by Jónsson on his website here.

Milestone Test Firing of NASA’s SLS Monster Rocket Engine Advances Human Path to Deep Space

During a 535-second test on August 13, 2015, operators ran the Space Launch System (SLS) RS-25 rocket engine through a series of tests at different power levels to collect engine performance data on the A-1 test stand at NASA's Stennis Space Center near Bay St. Louis, Mississippi. Credit: NASA

During a 535-second test on August 13, 2015, operators ran the Space Launch System (SLS) RS-25 rocket engine through a series of tests at different power levels to collect engine performance data on the A-1 test stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Credit: NASA
Story/imagery updated
See video below of full duration hot-fire test
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With today’s (Aug. 13) successful test firing of an RS-25 main stage engine for NASA’s Space Launch System (SLS) monster rocket currently under development, the program passed a key milestone advancing the agency on the path to propel astronauts back to deep space at the turn of the decade.

The 535 second long test firing of the RS-25 development engine was conducted on the A-1 test stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi – and ran for the planned full duration of nearly 9 minutes, matching the time they will fire during an actual SLS launch.

All indications are that the hot fire test apparently went off without a hitch, on first look.

“We ran the full duration and met all test objectives,” said Steve Wofford, SLS engine manager, on NASA TV following today’s’ test firing.

“There were no anomalies.” – based on the initial look.

The RS-25 is actually an upgraded version of former space shuttle main engines that were used with a 100% success rate during NASA’s three decade-long Space Shuttle program to propel the now retired shuttle orbiters to low Earth orbit. Those same engines are now being modified for use by the SLS.

Spectators enjoy the view during the Aug. 13, 2015 test firing of the RS-25 engine for NASA’s Space Launch System (SLS) on the A-1 test stand at NASA's Stennis Space Center near Bay St. Louis, Mississippi.  Credit: NASA
Spectators enjoy the view during the Aug. 13, 2015 test firing of the RS-25 engine for NASA’s Space Launch System (SLS) on the A-1 test stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Credit: NASA

“Data collected on performance of the engine at the various power levels will aid in adapting the former space shuttle engines to the new SLS vehicle mission requirements, including development of an all-new engine controller and software,” according to NASA officials .

The engine controller functions as the “brain” of the engine, which checks engine status, maintains communication between the vehicle and the engine and relays commands back and forth.

The core stage (first stage) of the SLS will be powered by four RS-25 engines and a pair of the five-segment solid rocket boosters that will generate a combined 8.4 million pounds of liftoff thrust, making it the most powerful rocket the world has ever seen.

Since shuttle orbiters were equipped with three space shuttle main engines, the use of four RS-25s on the SLS represents another significant change that also required many modifications being thoroughly evaluated as well.

RS-25 test firing in progress on the A-1 test stand at NASA's Stennis Space Center near Bay St. Louis, Mississippi, on Aug. 13, 2015.  Credit: NASA
RS-25 test firing in progress on the A-1 test stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, on Aug. 13, 2015. Credit: NASA

The SLS will be some 10 percent more powerful than the Saturn V rockets that propelled astronauts to the Moon, including Neil Armstrong, the human to walk on the Moon during Apollo 11 in July 1969.

SLS will loft astronauts in the Orion capsule on missions back to the Moon by around 2021, to an asteroid around 2025 and then beyond on a ‘Journey to Mars’ in the 2030s – NASA’s overriding and agency wide goal.

Each of the RS-25’s engines generates some 500,000 pounds of thrust. They are fueled by cryogenic liquid hydrogen and liquid oxygen. For SLS they will be operating at 109% of power, compared to a routine usage of 104.5% during the shuttle era. They measure 14 feet tall and 8 feet in diameter.

They have to withstand and survive temperature extremes ranging from -423 degrees F to more than 6000 degrees F.

This video shows the full duration hot-fire test:

NASA has 16 of the RS-25s leftover from the shuttle era and they are all being modified and upgraded for use by the SLS rocket.

Today’s test was the sixth in a series of seven to qualify the modified engines to flight status. The engine ignited at 5:01 p.m. EDT and reached the full thrust level of 512,000 pounds within about 5 seconds.

The hot gas was exhausted out of the nozzle at 13 times the speed of sound.

Since the shuttle engines were designed and built over three decades ago, they are being modified where possible with state of the art components to enhance performance, functionality and ease of operation, by prime contractor Aerojet-Rocketdyne of Sacramento, California.

One of the key objectives of today’s engine firing and the entire hot fire series was to test the performance of a brand new engine controller assembled with modern manufacturing techniques.

“Operators on the A-1 Test Stand at Stennis are conducting the test series to qualify an all-new engine controller and put the upgraded former space shuttle main engines through the rigorous temperature and pressure conditions they will experience during a SLS mission,” says NASA.

“The new controller, or “brain,” for the engine, which monitors engine status and communicates between the vehicle and the engine, relaying commands to the engine and transmitting data back to the vehicle. The controller also provides closed-loop management of the engine by regulating the thrust and fuel mixture ratio while monitoring the engine’s health and status.’

Video caption: RS-25 – The Ferrari of Rocket Engines explained. Credit: NASA

“The RS-25 is the most complicated rocket engine out there on the market, but that’s because it’s the Ferrari of rocket engines,” says Kathryn Crowe, RS-25 propulsion engineer.

“When you’re looking at designing a rocket engine, there are several different ways you can optimize it. You can optimize it through increasing its thrust, increasing the weight to thrust ratio, or increasing its overall efficiency and how it consumes your propellant. With this engine, they maximized all three.”

Engineers will now pour over the data collected from hundreds of data channels in great detail to thoroughly analyze the test results. They will incorporate any findings into future test firings of the RS-25s.

NASA says that testing of RS-25 flight engines is set to start later this fall.

“The RS-25 engine gives SLS a proven, high performance, affordable main propulsion system for deep space exploration. It is one of the most experienced large rocket engines in the world, with more than a million seconds of ground test and flight operations time.”

NASA plans to buy completely new sets of RS-25 engines from Aerojet-Rocketdyne taking full advantage of technological advances and modern manufacturing techniques as well as lessons learned from this hot fire series of engine tests.

The maiden test flight of the SLS is targeted for no later than November 2018 and will be configured in its initial 70-metric-ton (77-ton) version with a liftoff thrust of 8.4 million pounds. It will boost an unmanned Orion on an approximately three week long test flight beyond the Moon and back.

Artist concept of the SLS Block 1 configuration.  Credit: NASA
Artist concept of the SLS Block 1 configuration. Credit: NASA

NASA plans to gradually upgrade the SLS to achieve an unprecedented lift capability of 130 metric tons (143 tons), enabling the more distant missions even farther into our solar system.

The first SLS test flight with the uncrewed Orion is called Exploration Mission-1 (EM-1) and will launch from Launch Complex 39-B at the Kennedy Space Center.

NASA’s first Orion spacecraft blasts off at 7:05 a.m. atop United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida on Dec. 5, 2014.   Credit: Ken Kremer - kenkremer.com
NASA’s first Orion spacecraft blasts off at 7:05 a.m. atop United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida on Dec. 5, 2014. Credit: Ken Kremer – kenkremer.com

Orion’s inaugural mission dubbed Exploration Flight Test-1 (EFT) was successfully launched on a flawless flight on Dec. 5, 2014 atop a United Launch Alliance Delta IV Heavy rocket Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida.

Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.

Ken Kremer

NASA Administrator Charles Bolden officially unveils world’s largest welder to start construction of core stage of NASA's Space Launch System (SLS) rocket at NASA Michoud Assembly Facility, New Orleans, on Sept. 12, 2014. SLS will be the world’s most powerful rocket ever built.  Credit: Ken Kremer - kenkremer.com
NASA Administrator Charles Bolden officially unveils world’s largest welder to start construction of core stage of NASA’s Space Launch System (SLS) rocket at NASA Michoud Assembly Facility, New Orleans, on Sept. 12, 2014. SLS will be the world’s most powerful rocket ever built. Credit: Ken Kremer – kenkremer.com
STS-135: Last launch using RS-25 engines that will now power NASA’s SLS deep space exploration rocket. NASA’s 135th and final shuttle mission takes flight on July 8, 2011 at 11:29 a.m. from the Kennedy Space Center in Florida bound for the ISS and the high frontier with Chris Ferguson as Space Shuttle Commander. Credit: Ken Kremer/kenkremer.com
STS-135: Last launch using RS-25 engines that will now power NASA’s SLS deep space exploration rocket. NASA’s 135th and final shuttle mission takes flight on July 8, 2011 at 11:29 a.m. from the Kennedy Space Center in Florida bound for the ISS and the high frontier with Chris Ferguson as Space Shuttle Commander. Credit: Ken Kremer/kenkremer.com

Revealed: Mars to Appear Larger Than a Full Moon!

A recipe for a three ring circus? Image credit:

We can finally reveal the truth.

A massive conspiracy, spanning over a decade, has been revealed at last by basement bloggers, YouTubers and Facebook users everywhere, implicating ‘big-NASA’ and the powers that be in a massive cover-up.

Yes, it’s the month of August once again, and the Red Planet Mars is set to appear ‘larger than a Full Moon’ over the skies of Earth, as it apparently does now… every year.

Um, no. Stop. Just… stop.

Sure, by now, you’ve had the hoax forwarded to you by that certain well-meaning, but astronomically uninformed family member/co-worker/anonymous person on Facebook.

What’s new under the Sun concerning the August Mars Hoax? To see where the hoax was born, we have to journey all the way back to the close opposition of Mars on August 27th, 2003. Hey, we actually took two weeks leave in the Fall of 2003 just to sketch and image Mars each night from our backyard lair in the Sonoran desert south of Tucson, Arizona from the then known Very Small Optical Observatory. Those were the days. We measured dial-up internet speeds in kbit/s, ‘burned CDs,’ and Facebook and Twitter were still some years away. Even spam e-mail was still sorta hip.

Two years later in 2005, we were all amused, as the ‘August Mars Hoax’ chain email made its first post-2003 appearance in our collective inboxes. Heck, we were even eager in those halcyon days to take to the nascent web, and do that new hipster thing known as ‘blogging’ to explain just exactly why this couldn’t be so to the masses.

Later in 2006, 2007, and 2008, it wasn’t so funny.

The Mars Hoax just wouldn’t die. “One more unto the breach,” the collective astro-blogging community sighed, as we all dusted off last year’s post explaining how the Red Planet could never approach our own fair world so closely.

It. Just. Couldn’t. Because orbital mechanics. Because physics.

Even the advent of social media couldn’t kill in annual onslaught of the Mars Hoax, and over a Spiderman movie reboot later, we’re now seeing it shared across Facebook, Twitter and more.

Sure, the Mars Hoax is as fake as Donald Trump’s hair. If there’s any true science lesson to learn here, it’s perhaps the mildly interesting social science study of just how the Mars hoax weathers the lean months of winter, to reemerge every August.

Here’s the skinny (again!) on just why Mars can’t appear as large as the Full Moon:

-The Moon is 3,474 kilometers in diameter, and orbits the Earth at an average distance of just under 400,000 kilometers.

-At this distance, the Moon can only appear about 30’ (half a degree) across.

-Think that’s a lot? Well, you could ring the 360 degree circle of the local horizon with 720 Full Moons.

-Mars, like the Earth, orbits the Sun. Even with Earth at aphelion (its most distant point) and Mars at perihelion, we’re still 206.7 – 151.9 = 54.8 million km apart. Sure, aphelion and perihelion of our respective worlds don’t quite line up in our current epochs, but we’ll indulge imagination and fudge things a bit.

-Though Mars is just over 2x times larger in diameter than the Moon, it’s also more than 143 times farther away, even at its said hypothetical closest.

Credit Dave Dickinson
Mars vs Earth; oppositions from 2003 to 2018, including perihelion and aphelion positions. Image credit: Dave Dickinson

-Still want to see Mars as big as a Full Moon? Perhaps one day, astronauts will, though they’ll have to be orbiting just over a 800,000 km from the Red Planet to do it.

If we sound a little pessimistic in our characterizing the Mars Hoax as a recurring non-story, it’s because we see many truly fantastic things in space news that get far from their far shake. Real stories, of collapsing stars, rogue exoplanets, and intrepid rovers exploring distant worlds. Tales of humanoids, exploring space and doing the very best and noble things humanoids as a species can do.

Want to trace the history the Mars Hoax?

Here’s the saga of Universe Today’s coverage of all things ‘Mars Hoax’ since those olden days of the early web:

2005- No, Mars Won’t Look as Big as the Moon

2006- No, Mars Won’t Look as Big as the Moon in August

2007- Will Mars Look as Big as the Moon on August 27? Nope

2008- Please (Again) – Mars Will NOT Look as Big as the Full Moon

2009- Mars Will NOT Look as Big as the Full Moon… But You Can Watch it Get Closer

2010- Tonight’s the Night Mars Will NOT Look as Big as the Full Moon

2011- Is the Moon Mars Myth Over?

2013- The Cyber Myth that Just Won’t Die

2016- ????

Hey, it looks like the hoax did take a break in 2012 and 2014, so that’s encouraging at least…

The great Mars opposition of 2003. image credit: Dave Dickinson
The great Mars opposition of 2003. Image credit: Dave Dickinson

Now, I’m going to do my best to truly terrify all of science blogger-dom, and leave you with one final thought to consider. Mars reaches opposition (otherwise known in astronomical circles as ‘when it’s really nearest to the Earth’) once roughly every 26 months. All oppositions of Mars are not created equal, owing mostly to the eccentric orbit of the Red Planet. We have another fine opposition of Mars coming right up next year on May 22nd, 2016, followed by one that’s very nearly as favorable as the historic 2003 opposition in 2018, falling juuuuust shy of August on July 28th of that year…

Will the Mars Hoax meme find a new unwitting audience, and with it, new life?

Sleep tight…. we’ll be covering real science stories in the meantime, ’til we’re called to do battle with the Mars Hoax once again.

Congressional Slashes to NASA Commercial Crew Force Bolden to ‘Buy Russian’ rather than ‘Buy American’

US Congressional cuts to NASA’s commercial crew program forced NASA to buy more seats for US astronauts to launch on Russian Soyuz capsules like this one launched from the Baikonur Cosmodrome in Kazakhstan on Wednesday, July 22, 2015 EDT, rather than the American crew capsules under development by Boeing and SpaceX for NASA. Here the Soyuz TMA-17M capsule carries Expedition 44 Soyuz Commander Oleg Kononenko of the Russian Federal Space Agency (Roscosmos), Flight Engineer Kjell Lindgren of NASA, and Flight Engineer Kimiya Yui of the Japan Aerospace Exploration Agency (JAXA) into orbit to begin their five month mission on the International Space Station. Credits: NASA/A. Gemignani

In the face of drastic funding cuts by the US Congress to NASA’s commercial crew program (CCP) aimed at restoring America’s indigenous launch capability to fly our astronauts to the International Space Station (ISS), NASA Administrator Charles Bolden is being forced to spend another half a billion dollars for seats on Russia’s Soyuz spacecraft instead of astronaut transport ships built by American workers in American manufacturing facilities.

The end effect of significantly slashing NASA’s Fiscal 2016 commercial crew budget request by both the US Senate and the US House is to tell NASA to ‘Buy Russian’ rather than to ‘Buy American.’

The $490 million of US taxpayer dollars will pay for six astronaut seats on the Soyuz manned capsule in 2018 and 2019 – that are now required due to uncertainty over whether the pair of new crewed transporters being built by Boeing and SpaceX for NASA will actually be available in 2017 as planned.

Furthermore the average cost per seat under the new contract with Russia rises to $81.7 million compared to about $76 million for the most recent contract, an increase of about 7 percent.

In response to the Congressional CCP budget cuts, NASA Administrator Bolden sent a letter notifying Congressional lawmakers about the agency’s new contract modifications with the Russian space agency about future crewed flights to the space station.

“I am writing to inform you that NASA, once again, has modified its current contract with the Russian government to meet America’s requirements for crew transportation services. Under this contract modification, the cost of these services to the U.S. taxpayers will be approximately $490 million,” Bolden wrote in an Aug. 5 letter to the leaders of the House and Senate committees responsible for deciding NASA’s funding.

The budget situation is completely inexplicable given the relentless pressure from Congress, led be Sen. John McCain, on the Department of Defense and US aerospace firm United Launch Alliance (ULA) to stop purchasing and using the Russian-made RD-180 engines for the 100% reliable Atlas V rocket by 2019 – as a way to punish Russian’s President Vladimir Putin and his allies.

Because on the other hand, those same congressional ‘leaders’ clearly have no hesitation whatsoever in putting money into Putin’s allies pockets via the NASA commercial crew account – at the expense of jobs for American workers and while simultaneously potentially endangering the ISS as a hedge against possible Russian launch failures. Multiple Russian and American rockets have suffered launch failures over the past year.

Boeing and SpaceX were awarded contracts by NASA Administrator Bolden in September 2014 worth $6.8 Billion to complete the development and manufacture of their privately developed CST-100 and Crew Dragon astronaut transporters under the agency’s Commercial Crew Transportation Capability (CCtCap) program and NASA’s Launch America initiative.

NASA Administrator Charles Bolden (left) announces the winners of NASA’s Commercial Crew Program development effort to build America’s next human spaceships launching from Florida to the International Space Station. Speaking from Kennedy’s Press Site, Bolden announced the contract award to Boeing and SpaceX to complete the design of the CST-100 and Crew Dragon spacecraft. Former astronaut Bob Cabana, center, director of NASA’s Kennedy Space Center in Florida, Kathy Lueders, manager of the agency’s Commercial Crew Program, and former International Space Station Commander Mike Fincke also took part in the announcement. Credit: Ken Kremer- kenkremer.com
NASA Administrator Charles Bolden (left) announces the winners of NASA’s Commercial Crew Program development effort to build America’s next human spaceships launching from Florida to the International Space Station. Speaking from Kennedy’s Press Site, Bolden announced the contract award to Boeing and SpaceX to complete the design of the CST-100 and Crew Dragon spacecraft. Former astronaut Bob Cabana, center, director of NASA’s Kennedy Space Center in Florida, Kathy Lueders, manager of the agency’s Commercial Crew Program, and former International Space Station Commander Mike Fincke also took part in the announcement. Credit: Ken Kremer- kenkremer.com

The purpose of CCP is to end our “sole reliance” on the Russian Soyuz capsule and launch US astronauts on US rockets and spaceships from US soil by 2017.

With CCP we would continue to work cooperatively with the Russians to everyone’s benefit – but not be totally dependent on them.

Under NASA’s CCtCAP contract, the first orbital flights of the new ‘space taxis’ launching our astronauts to the International Space Station had been slated to blastoff in 2017. But that schedule was entirely dependent on NASA’s ability to pay both aerospace companies as they made progress on completing the contacted milestones absolutely critical to achieving flight status.

Bolden had already notified Congress in February that the new contract modification would become necessary if Congress failed to fully fund the CCP program to enable the 2017 flights.

Since the forced retirement of NASA’s trio of shuttle orbiters in 2011, all American and ISS partner astronauts have been forced to hitch a ride on the Soyuz for flights to the ISS and back.

“Our plans to return launches to American soil make fiscal sense,” Bolden said recently. “It currently costs $76 million per astronaut to fly on a Russian spacecraft. On an American-owned spacecraft, the average cost will be $58 million per astronaut.”

Instead, the Obama Administrations 2016 request for commercial crew (CCP) amounting to $1.244 Billion was dealt another blow, and slashed to only $900 million and $1.0 Billion by the Senate and House committees respectively.

Boeing and SpaceX are building private spaceships to resume launching US astronauts from US soil to the International Space Station in 2017. Credit: NASA
Boeing and SpaceX are building private spaceships to resume launching US astronauts from US soil to the International Space Station in 2017. Credit: NASA

And this is just the latest in a lengthy string of cuts by Congress – which has not fully funded the Administration’s CCP funding requests, since its inception in 2010.

The budget significant budget slashes amounting to 50% or more by Congress, have already forced NASA to delay the first commercial crew flights of the private ‘space taxis’ from 2015 to 2017.

“Due to their continued reductions in the president’s funding requests for the agency’s Commercial Crew Program over the past several years, NASA was forced to extend its existing contract with the Russian Federal Space Agency (Roscosmos) to transport American astronauts to the International Space Station. This contract modification is valued at about $490 million,” said NASA.

So the net effect of Congressional CCP cuts has been to prolong US sole reliance on the Russian Soyuz manned capsule at a cost to the US taxpayers of hundreds of millions of dollars.

Indeed, given the crisis in Ukraine and recent Russian launch failures, one might think the Congress would eagerly embrace wanting to reduce our total dependence on the Russians for human spaceflight.

“Unfortunately, for five years now, the Congress, while incrementally increasing annual funding, has not adequately funded the Commercial Crew Program to return human spaceflight launches to American soil this year, as planned,” Bolden’s letter explains.

“This has resulted in continued sole reliance on the Russian Soyuz spacecraft as our crew transport vehicle for American and international partner crews to the ISS.”

“In 2010, I presented to Congress a plan to partner with American industry to return launches to the United States by 2015 if provided the requested level of funding.”

So if Congress had funded the commercial crew program, the US would have launched its first human crews on the CST-100 and crew Dragon to the ISS this year – 2015.

NASA has selected experienced astronauts Robert Behnken, Eric Boe, Douglas Hurley and Sunita Williams to work closely with The Boeing Company and SpaceX to develop their crew transportation systems and provide crew transportation services to and from the International Space Station.  Credits: NASA
NASA has selected experienced astronauts Robert Behnken, Eric Boe, Douglas Hurley and Sunita Williams to work closely with The Boeing Company and SpaceX to develop their crew transportation systems and provide crew transportation services to and from the International Space Station. Credits: NASA

Bolden also repeated his request to work with the leaders of Congress in the best interests of our country.

“I am asking that we put past disagreements behind us and focus our collective efforts on support for American industry – the Boeing Corporation and SpaceX – to complete construction and certification of their crew vehicles so that we can begin launching our crews from the Space Coast of Florida in 2017.”

Currently, both Boeing and SpaceX are on track to meet the 2017 objective – but only if the CCP funds are restored.

Otherwise the contracts will have to be renegotiated and progress will be severely reduced – all at added cost. Another instance of pennywise and pound foolish.

“Our Commercial Crew Transportation Capability (CCtCap) contractors are on track today to provide certified crew transportation systems in 2017,” says Bolden.

“Reductions from the FY 2016 request for Commercial Crew proposed in the House and Senate FY 2016 Commerce, Justice, Science, and Related Agencies appropriations bills would result in NASA’s inability to fund several planned CCtCap milestones in FY 2016 and would likely result in funds running out for both contractors during the spring/summer of FY 2016.”

“If this occurs, the existing fixed-price CCtCap contracts may need to be renegotiated, likely resulting in further schedule slippage and increased cost.”

Overall, it’s just a terrible state of affairs for the future of US human spaceflight, as Congress once again places partisan politics ahead of the interests of the American people.

The fact is that the commercial crew space taxis from Boeing and SpaceX are the fastest, cheapest and most efficient pathway to get our astronaut crews to the Earth orbiting space station and back.

Common sense says we must restore our independent path to the ISS – safely and as quickly as possible.

SpaceX and Boeing are building the private crew Dragon and CST-100 spaceships to resume launching US astronauts from US soil aboard Falcon 9 and Atlas V rockets (similar to these) to the International Space Station in 2017 - depending on funding from Congress. Credit:  Ken Kremer/kenkremer.com
SpaceX and Boeing are building the private crew Dragon and CST-100 spaceships to resume launching US astronauts from US soil aboard Falcon 9 and Atlas V rockets (similar to these) to the International Space Station in 2017 – depending on funding from Congress. Credit: Ken Kremer/kenkremer.com

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Yummy! ISS Astronauts Eat First Space-Grown Food

NASA Astronauts Kjell Lindgren (center) and Scott Kelly (right) and Kimiya Yui (left) of Japan consume space grown food for the first time ever, from the Veggie plant growth system on the International Space Station in August 2015. Credit: NASA TV

Video caption: That’s one small bite for a man, one giant leaf for mankind: NASA Astronauts Scott Kelly, Kjell Lindgren and Kimiya Yui of Japan sample the fruits of their labor after harvesting a crop of “Outredgeous” red romaine lettuce from the Veggie plant growth system on the International Space Station. Credit: NASA TV

Going where no astronauts have gone before, a trio of “space farmers” living aboard the International Space Station (ISS) have just become the first humans ever to eat food grown in space!

The gleeful munchers downed the freshly harvested crop of blood red colored “Outredgeous” red romaine lettuce salad during a live webcast today, Monday, August 10, direct from the Earth orbiting outpost soaring some 250 miles (400 km) above the home planet.

“Woo hoo ! …. Cheers!” exclaimed the eager Expedition 44 astronauts comprising Kjell Lindgren, Scott Kelly and Kimiya Yui, at the moment of truth, as they consumed the fruits of their own labor.

“It was one small bite for man, one giant leap for #NASAVEGGIE and our #JourneytoMars. #YearInSpace,” tweeted Kelly.

The momentous salad eating event took place at 12:26 EDT from beside the innovative and groundbreaking “Veggie” plant growth system, housed inside the European Space Agency’s Columbus laboratory located at the end of the US section of the ISS.

“That’s awesome!” said Lindgren with a broad smile – to the audible crunchy sounds of chewing on the freshly cut space lettuce.

“Tastes good!” replied Kelly, upon happily consuming the red leafed vegetable. He is now in the 5th month of his planned 1 Year mission aboard the ISS.

“Chomp! Our first veggies were harvested & consumed by astronauts in space!” tweeted NASA.

They all welcomed the opportunity to sample some freshly grown space produce from their miniature “ space farm.” Resident ISS crewmembers have been waiting for the “GO” to eat for some time.

“It tastes like arugula,” added Kelly, as they first tried the lettuce plain, as a control taste test of the virgin crop to get “the full effect.”

“It’s fresh,” Lindgren responded.

Then they doused quickly it with some oil and vinegar for flavor comparison.

“After trying the lettuce plain, @astro_kjell and @StationCDRKelly added oil & vinegar!” NASA tweeted.

Lindgren had carefully and methodically snipped away about half of the lettuce crop, on live NASA TV – which had grown to quite a size under the carefully maintained conditions inside “Veggie.”

He then cleaned “the leafy greens” by placing them between citric acid-based, food safe sanitizing wipes before the taste test.

After momentarily bagging the harvest, he distributed samples to his “tastemates” and the fun began.

“It’s wonderful to eat fresh food on the ISS, which is a lot of white and aluminum and it’s kind of a sterile environment,” said Kelly.

So this was quite different.

“It’s really fun to see green, growing things in here that we’re intentionally growing for sustenance. So we sure appreciate this payload and the opportunity to grow and eat and harvest these crops.”

The joyful trio saved some for the produce for their three Russian station colleagues to try later – Oleg Kononenko, Gennady Padalka and Mikhail Kornienko. Two of the Russian cosmonauts, Expedition 44 commander Padalka and Kelly’s 1 year crew mate Kornienko, were conducting a spacewalk today, simultaneously to the lettuce taste testing.

This "Outredgeous" red romaine lettuce was grown inside the Veggie plant growth system on the ISS and eaten on August 10, 2015 by the station crew.  The goal was to test hardware for growing vegetables and other plants to be harvested and eaten by astronauts in space.  Credits: NASA TV
This “Outredgeous” red romaine lettuce was grown inside the Veggie plant growth system on the ISS and eaten on August 10, 2015 by the station crew. The goal was to test hardware for growing vegetables and other plants to be harvested and eaten by astronauts in space. Credits: NASA TV

Another portion was set aside “to be packaged and frozen on the station until it can be returned to Earth for scientific analysis,” said NASA.

Although some vegetables have been grown before on the station, including prior crops of lettuce from “Veggie,” today marked the first time that any astronauts were “officially” granted “permission” to eat the fruits of their labor. Russian cosmonauts have eaten their station crops in the past. It’s a mystery whether any partner crewmates surreptitiously tasted some of the Russian produce.

And it not just for fun. In fact growing edible space food marks a significant new milestone towards enabling deep space human exploration, as explained by Kelly.

“Having lived on the space station for a while, I understand the logistical complexity of having people work in space for long periods and the supply chain that’s required to keep us going,” Kelly remarked.

“If we’re ever going to go to Mars someday, and we will, we’re going to have a spacecraft that is much more self sustainable with regard to its food supply.”

Experiments like these are critical for NASA’s plans to send humans on a “Journey to Mars” in the 2030s.

The “Journey to Mars” and back is likely to take well over two years and resupply is not possible. Crews will have to grow at least a portion of their own food and today’s experiment helps pave the human path to the Red Planet.

The “Veggie” experiment was developed by Orbital Technologies Corp. (ORBITEC) in Madison, Wisconsin.

The Veggie-01 apparatus was thoroughly tested at Kennedy before flight. It was delivered, along with two sets of pillows containing the romaine seeds and one set of zinnias, to the ISS by the SpaceX-3 Dragon cargo resupply mission launched in April 2014.

NASA astronaut Kjell Lindgren displays the  “Outredgeous" red romaine lettuce grown inside the Veggie plant growth system on the ISS prior to harvesting and consumption on August 10, 2015.  Credit: NASA TV
NASA astronaut Kjell Lindgren displays the “Outredgeous” red romaine lettuce grown inside the Veggie plant growth system on the ISS prior to harvesting and consumption on August 10, 2015. Credit: NASA TV

The lettuce crop inside the Veggie-01 plant pillows were activated by Kelly on July 8. They were grown for 33 days before being harvested today. The seeds had been stored dormant on the station for some 15 months since arriving aboard the SpaceX-3 Dragon, according to NASA.

The collapsible and expandable Veggie unit features a flat panel light bank that includes red, blue and green LEDs for plant growth and crew observation.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Veggie demonstration apparatus growing red romaine lettuce under LED lights in the Space Station Processing Facility at NASA’s Kennedy Space Center.  Credit: Ken Kremer/kenkremer.com
Veggie demonstration apparatus growing red romaine lettuce under LED lights in the Space Station Processing Facility at NASA’s Kennedy Space Center. Credit: Ken Kremer/kenkremer.com

Mysterious Bright Spots and Pyramidal Mountain Star in Dawn’s Daunting Flyover of Ceres: Video

The intriguing brightest spots on Ceres lie in a crater named Occator, which is about 60 miles (90 kilometers) across and 2 miles (4 kilometers) deep. Vertical relief has been exaggerated by a factor of five. Exaggerating the relief helps scientists understand and visualize the topography much more easily, and highlights features that are sometimes subtle. Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/LPI

Video caption: Take a tour of weird Ceres! Visit a 2-mile-deep crater and a 4-mile-tall mountain in the video narrated by mission director Marc Rayman. Get your red/blue glasses ready for the finale – a global view of the dwarf planet in 3D. Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/LPI/PSI

Mysterious bright spots and a pyramidal shaped mountain star in a daunting new flyover video of dwarf planet Ceres created from imagery gathered by NASA’s history making Dawn mission – the first ever to visit any dwarf planet which simultaneously ranks as the largest world in the main asteroid belt residing between Mars and Jupiter.

Ceres was nothing more than a fuzzy blob to humankinds most powerful telescopes like the Hubble Space Telescope (HST), until the probe swooped in this year and achieved orbit on March 6, 2015.

The newly released, stunning video takes takes you on a tour like none before for a global cruise over the most fascinating features on Ceres – including the 2-mile-deep (4-km-deep) crater dubbed Occator and a towering 4-mile-tall (6 kilometer-tall) mountain as tall as any in North America.

The spectacular flyover animation was generated from high resolution images taken by Dawn’s framing camera during April and May and is narrated by Marc Rayman, Dawn Chief Engineer and Mission Director of NASA’s Jet Propulsion Laboratory, Pasadena, California.

The video concludes with a 3D view, so you’ll need to whip out your handy red/blue glasses for the finale – a global view of the dwarf planet in 3D.

From the orbital altitude at that time ranging from about 8,400 miles (13,600 kilometers) to 2,700 miles (4,400 kilometers), the highest-resolution regions on Ceres have a resolution of 1,600 feet (480 meters) per pixel.

Pockmarked Ceres is an alien world unlike any other in our solar system, replete with unexplained bright spots and craters of many sizes, large and small.

Occatur has captured popular fascination world-wide because the 60 miles (90 kilometers) diameter crater is rife with a host of the bodies brightest spots and whose nature remains elusive to this day, nearly half a year after Dawn arrived in orbit this past spring.

“Now, after a journey of 3.1 billion miles (4.9 billion kilometers) and 7.5 years, Dawn calls Ceres, home,” says Rayman.

The crater is named after the Roman agriculture deity of harrowing, a method of pulverizing and smoothing soil.

Dawn is an international science mission managed by NASA and equipped with a trio of science instruments from the US, Germany and Italy. The framing camera was provided by the Max Planck Institute for Solar System Research, Göttingen, Germany and the German Aerospace Center (DLR).

The visible and infrared mapping spectrometer (VIR), provided by Italy is an imaging spectrometer that examines Ceres in visible and infrared light.

Dawn’s science team is using the instruments to investigate the light reflecting from Occator at different wavelengths.

From a distance, the crater appeared to be home to a duo of bright spots that looked like a pair of eyes. As Dawn moves ever closer, they became more resolved and now are split into dozens of smaller bright spots.

Global view of Ceres uses data collected by NASA's Dawn mission in April and May 2015.  The highest-resolution parts of the map have a resolution of 1,600 feet (480 meters) per pixel.  Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/LPI/PSI
Global view of Ceres uses data collected by NASA’s Dawn mission in April and May 2015. The highest-resolution parts of the map have a resolution of 1,600 feet (480 meters) per pixel. Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/LPI/PSI

Although some early speculation centered on the spots possibly being consistent with water ice or salts, newly gathered data “has not found evidence that is consistent with ice. The spots’ albedo -¬ a measure of the amount of light reflected -¬ is also lower than predictions for concentrations of ice at the surface,” according to the scientists.

“The science team is continuing to evaluate the data and discuss theories about these bright spots at Occator,” said Chris Russell, Dawn’s principal investigator at the University of California, Los Angeles, in a statement.

“We are now comparing the spots with the reflective properties of salt, but we are still puzzled by their source. We look forward to new, higher-resolution data from the mission’s next orbital phase.”
Occator lies in Ceres northern hemisphere.

The huge pyramidal mountain lies farther to the southeast of Occator – at 11 degrees south, 316 degrees east.

Based on the latest calculations, the mountain sits about 4 miles (6 kilometers) high, with respect to the surface around it. That make it roughly the same elevation as Mount McKinley in Denali National Park, Alaska, the highest point in North America.

Among the highest features seen on Ceres so far is a mountain about 4 miles (6 kilometers) high, which is roughly the elevation of Mount McKinley in Alaska's Denali National Park.  Vertical relief has been exaggerated by a factor of five to help understand the topography. Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/LPI
Among the highest features seen on Ceres so far is a mountain about 4 miles (6 kilometers) high, which is roughly the elevation of Mount McKinley in Alaska’s Denali National Park. Vertical relief has been exaggerated by a factor of five to help understand the topography. Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/LPI

The Texas-sized world is slightly smaller than previously thought. Based on new measurements from Dawn, Ceres’ average diameter to 584 miles (940 kilometers), compared to earlier estimates of 590 miles (950 kilometers).

Dawn made history in March when it simultaneously became the first probe from Earth to reach Ceres as well as the first spacecraft to orbit two extraterrestrial bodies.

It had previously visited Vesta. After achieving orbit in July 2011, Dawn became the first spacecraft from Earth to orbit a body in the main Asteroid Belt.

In sharp contrast to rocky Vesta, Ceres is an icy world.

Scientists believe that Ceres may harbor an ocean of subsurface liquid water as large in volume as the oceans of Earth below a thick icy mantle despite its small size – and thus could be a potential abode for life. Overall Ceres is estimated to be about 25% water by mass.

“We really appreciate the interest in our mission and hope they are as excited as we have been about these scientific surprises,” Russell told Universe Today.

“Since we are only just beginning our investigation, I expect that there will be more surprises. So please stick with us!”

As Dawn spirals down to a lower orbit of about 1,200 miles (1,900 km) above Ceres (and then even lower) using its ion engines, new answers and new mysteries are sure to be forthcoming.

“There are many other features that we are interested in studying further,” said Dawn science team member David O’Brien, with the Planetary Science Institute, Tucson, Arizona.

“These include a pair of large impact basins called Urvara and Yalode in the southern hemisphere, which have numerous cracks extending away from them, and the large impact basin Kerwan, whose center is just south of the equator.”

The mission is expected to last until at least June 2016 depending upon fuel reserves.

Dawn was launched on September 27, 2007 by a United Launch Alliance (ULA) Delta II Heavy rocket from Space Launch Complex-17B (SLC-17B) at Cape Canaveral Air Force Station, Florida.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Stealing Sedna

An artist's conception of Sedna. this assumes that Sedna has a tiny as yet undiscovered moon. Image credit; NASA/JPl-Caltech

Turns out, our seemly placid star had a criminal youth of cosmic proportions.

A recent study out from Leiden Observatory and Cornell University may shed light on the curious case of one of the solar system’s more exotic objects: 90377 Sedna.

Distant Sedna (circled) moving against the starry background). Image credit: NASA/Hubble
Distant Sedna (circled) moving against the starry background). Image credit: NASA/Hubble

A team led by astronomer Mike Brown discovered 90377 Sedna in late 2003. Provisionally named 2003 VB12, the object later received the name Sedna from the International Astronomical Union, after the Inuit goddess of the sea.

From the start, Sedna was an odd-ball. Its 11,400 year orbit takes it from a perihelion of 76 astronomical units (for context, Neptune is an average of 30 AUs from the Sun) to an amazing 936 AUs from the Sun. (A thousand AUs is 1.6% of a light year, and 0.4% of the way to Proxima Centauri, the closest star to our solar system). Currently at a distance of 86 AU and headed towards perihelion in 2076, we’re lucky we caught Sedna as it ‘neared’ (we use the term ‘near’ loosely in this case!) the Sun.

But this strange path makes you wonder what else is out there, and how Sedna wound up in such an eccentric orbit.

Zooming out; the inner solar system (upper left), the outer solar system (upper right), the orbit of Sedna (lower right) and the inner edge of the Oort cloud (lower left).  Image credit: NASA
Zooming out; the inner solar system (upper left), the outer solar system (upper right), the orbit of Sedna (lower right) and the inner edge of the Oort cloud (lower left). Image credit: NASA

The study, entitled How Sedna and family were captured in a close encounter with a solar sibling  looks at the possibility that Sedna may have been snatched from another star early on in our Sun’s career (of interstellar crime, perhaps?)  The team used supercomputer simulations modeling 10,000 encounters to discover which types of near stellar passages might result in an ice dwarf world in a Sedna-like orbit.

“We constrained the parent star of Sedna to have between one and two times the mass of the Sun and its closest approach to be 200-400 AUs,” Dr. Lucie Jilkova of Leiden Observatory told Universe Today. “Such a close encounter probably happened while the Sun was still a member of its birth star cluster — a family of about 1,000 stars, so called solar siblings, born at the same time relatively close together — which was about 4 billion years ago.”

Image credit:
The orbit of Sedna. (Note Neptune and Pluto towards the center) Image credit: NASA/JPL

The best fit for what we see today in the outer solar system in the case of Sedna, is a close (340 AU) passage from the Sun — that’s over 11 times Neptune’s distance — of a 1.8 solar mass star  inclined at an angle of 17-34 degrees to the ecliptic. Sedna’s current orbital inclination is 12 degrees.

Rise of the Sednitos

The paper assigns the term ‘Sednitos’ (also sometimes referred to as ‘Sednoids’) for these Edgeworth-Kuiper Belt intruders with similar characteristics to Sedna. In 2012, 2012 VP113, dubbed the ‘twin of Sedna,’ was discovered by astronomers at the Cerro Tololo Inter-American Observatory in a similar looping orbit. The ‘VP’ designation earned the as yet unnamed  remote world the brief nickname ‘Biden’ after U.S. Vice President Joe Biden… hey, it was an election year.

There’s good reason to believe something(s?) out there shepherding these Senitos into a similar orbit with a comparable argument of perihelion. Researchers have suggested the existence of one or several planetary mass objects loitering out in the 200-250 AU range of the outer solar system… note that this is

a separate scientific-based discussion versus any would-be Nibiru related non-sense, don’t even get

us started…

If researchers in the study are correct, Sedna may have lots of company, with perhaps 930 planetesimals predicted in the ‘Sednito region’ of the solar system from 50 to 1,000 AUs and 430 more additional planetesimals littering the inner Oort cloud from the same early event.

“We focused on a particular example of a stellar encounter with characteristics from the ranges mentioned,” Dr. Jilkova said. “For this example, we estimated that there would be about 430 bodies similar to Sedna in the outer solar system (beyond 75 AU).”

Fun fact: One possible controversial candidate for the birth cluster of Sol and our solar system is the open cluster M67 in Cancer.  It’s an intriguing notion to try and track down the star we stole Sedna from 4 billion years ago using spectral analysis, though researchers in the study point out that the other more massive star is probably an aging white dwarf by now.

Astronomy from the surface of Sedna is mind-bending to contemplate. Currently 86 AU from the Sun and headed towards perihelion in 2076, Sol would appear only 20” across from the surface of Sedna, but would still shine at magnitude -17 to -18 near perihelion, about 40 to 100 times brighter than a Full Moon. Fast forward about 5,500 years towards aphelion, however, and the Sun would dim to a paltry magnitude -12, a full magnitude (2.5 times) dimmer than the Full Moon.

The view from Sedna looking towards the inner solar system in 2015. Image credit: Starry Night Education Software.
The view from Sedna looking towards the inner solar system in 2015. Note the five degree red field of view marker. Image credit: Starry Night Education Software.

Shining at magnitude +21 in the constellation Taurus, astronomers know little else about Sedna. Based on brightness estimates, Sedna measures about 1,000 km in diameter. It does appear to be the reddest object in the solar system, and may turn out to be the ‘red twin of Pluto’ as recently revealed by NASA’s New Horizons spacecraft, complete with a surface rich in tholins.

And a new generation of observatories may uncover a treasure trove of Sednitos. The European Space Agency’s Gaia astrometry mission should uncover lots of new asteroids, comets, exoplanets and distant Kuiper Belt objects as a spin-off to its primary mission. Then there’s the Large Synoptic Survey Telescope, set to see first light in 2019.

“The key piece of the puzzle is to actually observe more Sedna-like objects.” Dr Jilkova said. “Currently, we know only of two such bodies. More discoveries are expected in the following years and they will shed light on the origin of Sedna and its family and the ‘criminal record’ of the Sun.”

It’s a fascinating story of interstellar whodunit for sure, as our Sun’s early days of wanton juvenile delinquency unravel before the eyes of modern day astronomical detectives.

Moon Transits Earth in Eye-poppingly EPIC View from 1 Million Miles Away

This animation shows images of the far side of the moon, illuminated by the sun, as it crosses between the DISCOVR spacecraft's Earth Polychromatic Imaging Camera (EPIC) camera and telescope, and the Earth - one million miles away. Credit: NASA/NOAA

This animation shows images of the far side of the moon, illuminated by the sun, as it crosses between the DISCOVR spacecraft’s Earth Polychromatic Imaging Camera (EPIC) camera and telescope, and the Earth – one million miles away. Credit: NASA/NOAA
See YouTube version and EPIC camera below[/caption]

An eye-poppingly ‘EPIC’ view of the sunlit far side of the Moon transiting the sunlit side of Earth was recently captured by NASA’s Earth Polychromatic Imaging Camera (EPIC) camera from one million miles away. “Wow!” – is an understatement!

The stunning animation of the Moon crossing in front of the Earth, shown above, and seemingly unlike anything else, was created from a series of images taken in July by NASA’s EPIC camera flying aboard the orbiting Deep Space Climate Observatory (DSCOVR), a space weather monitoring satellite, according to a NASA statement.

Have just witnessed NASA’s New Horizons flyby of the Pluto-Charon double planet system, the similarity to what some call the Earth-Moon double planet system is eerie. You could imagine ones heart going out to Earth’s Australian continent as an upside down version of Pluto’s bright heart shaped ‘Tombaugh Regio’ region in the southern hemisphere.

EPIC is a four megapixel CCD camera and telescope mounted on DSCOVR and orbiting at the L1 Lagrange Point – a neutral gravity point that lies on the direct line between Earth and the sun.

The goal of the $340 million DSCOVR is to monitor the solar wind and aid very important forecasts of space weather at Earth from L1.

EPIC will capture “a constant view of the fully illuminated Earth as it rotates, providing scientific observations of ozone, vegetation, cloud height and aerosols in the atmosphere.”

L1 is located 1.5 million kilometers (932,000 miles) sunward from Earth. At L1 the gravity between the sun and Earth is perfectly balanced and the DSCOVR satellite orbits about that spot just like a planet.

The EPIC images “were taken between 3:50 p.m. and 8:45 p.m. EDT on July 16, showing the moon moving over the Pacific Ocean near North America,” NASA said.

This image shows images of the far side of the moon, illuminated by the sun, as it crosses between the DISCOVR spacecraft's Earth Polychromatic Imaging Camera (EPIC) camera and telescope, and the Earth - one million miles away.  Credits: NASA/NOAA
This image shows images of the far side of the moon, illuminated by the sun, as it crosses between the DISCOVR spacecraft’s Earth Polychromatic Imaging Camera (EPIC) camera and telescope, and the Earth – one million miles away. Credits: NASA/NOAA

You can see Earth’s North Pole at the upper left side of the images which results from the orbital tilt of Earth from the vantage point of the spacecraft at the L1 Lagrange Point.

EPIC will take full disk color images of the sunlit side of Earth at least six times per day.

They will be made publically available by NASA at a dedicated website, when the camera starts its regular daily science observation campaign of the home planet in about a month during September.

NASA says the images will show varying views of the rotating Earth and they will be posted online some 12 to 36 hours after they are acquired.

Each image is actually a composite of three images taken in the red, green and blue channels of the EPIC camera to provide the final “natural color” image of Earth. Since the images are taken about 30 seconds apart as the moon is moving there is a slight but noticeable artifact on the right side of the moon, NASA explained.

Altogether, “ EPIC takes a series of 10 images using different narrowband spectral filters — from ultraviolet to near infrared — to produce a variety of science products. The red, green and blue channel images are used in these color images.”

EPIC should capture these Earth-Moon transits about twice per year as the orbit of DSCOVR crosses the orbital plane of the moon.

The closest analog according to NASA came in May 2008 when NASA’s Deep Impact spacecraft “captured a similar view of Earth and the moon from a distance of 31 million miles away. The series of images showed the moon passing in front of our home planet when it was only partially illuminated by the sun.”

We never see the far side of the moon from Earth since the bodies are tidally locked. And its quite apparent from the images, that the moon’s far side looks completely different from the side facing Earth. The far side lacks the large, dark, basaltic plains, or maria, that are so prominent on the Earth-facing side.

“It is surprising how much brighter Earth is than the moon,” said Adam Szabo, DSCOVR project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, in a statement.

“Our planet is a truly brilliant object in dark space compared to the lunar surface.”

DSCOVR is a joint mission between NOAA, NASA, and the U.S Air Force (USAF) that is managed by NOAA. The satellite and science instruments were provided by NASA and NOAA.

Technician works on NASA Earth science instruments and Earth imaging EPIC camera (white circle) housed on NOAA/NASA Deep Space Climate Observatory (DSCOVR) inside NASA Goddard Space Flight Center clean room in November 2014.  Credit: Ken Kremer/kenkremer.com/AmericaSpace
Technician works on NASA Earth science instruments and Earth imaging EPIC camera (white circle) housed on NOAA/NASA Deep Space Climate Observatory (DSCOVR) inside NASA Goddard Space Flight Center clean room in November 2014. Credit: Ken Kremer/kenkremer.com

The couch sized probe was launched atop a SpaceX Falcon 9 on Feb. 11, 2015 from Cape Canaveral, Florida, to start a million mile journey to its deep space observation post. The rocket was funded by the USAF.

DSCOVR was first proposed in 1998 by then US Vice President Al Gore as the low cost ‘Triana’ satellite to take near continuous views of the Earth’s entire globe to feed to the internet as a means of motivating students to study math and science. It was eventually built as a much more capable Earth science satellite that would also conduct the space weather observations.

But Triana was shelved for purely partisan political reasons and the satellite was placed into storage at NASA Goddard and the science was lost until now.

It was also dubbed “Goresat.’

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Video caption: This animation shows images of the far side of the moon, illuminated by the sun, as it crosses between the DISCOVR spacecraft’s Earth Polychromatic Imaging Camera (EPIC) camera and telescope, and the Earth – one million miles away. Credit: NASA/NOAA

NOAA/NASA Deep Space Climate Observatory (DSCOVR) undergoes processing in NASA Goddard Space Flight Center clean room. Solar wind instruments at right. DSCOVER will launch in February 2015 atop SpaceX Falcon 9 rocket.  Credit: Ken Kremer/kenkremer.com/AmericaSpace
NOAA/NASA Deep Space Climate Observatory (DSCOVR) undergoes processing in NASA Goddard Space Flight Center clean room. Solar wind instruments at right. DSCOVER launched in February 2015 atop SpaceX Falcon 9 rocket. Credit: Ken Kremer/kenkremer.com
Launch of NOAA DSCOVR satellite from Cape Canaveral Air Force Station on Feb. 11, 2015 to monitor solar storms and space weather.   Credit:  Julian Leek
Launch of NOAA DSCOVR satellite from Cape Canaveral Air Force Station on Feb. 11, 2015 to monitor solar storms and space weather. Credit: Julian Leek

Curiosity Drills Deep into First High Silica Martian Rock on Third Touchdown Anniversary

Curiosity extends robotic arm and conducts sample drilling at “Buckskin” rock target at bright toned “Lion” outcrop at the base of Mount Sharp on Mars, seen at right. Gale Crater eroded rim seen in the distant background at left, in this composite multisol mosaic of navcam raw images taken to Sol 1059, July 30, 2015. Navcam camera raw images stitched and colorized. Inset: MAHLI color camera up close image of full depth drill hole at “Buckskin” rock target on Sol 1060. Credit: NASA/JPL-Caltech/MSSS/Ken Kremer/kenkremer.com/Marco Di Lorenzo

Curiosity extends robotic arm and conducts sample drilling at “Buckskin” rock target at bright toned “Lion” outcrop at the base of Mount Sharp on Mars, seen at right, during August 2015. Gale Crater eroded rim seen in the distant background at left, in this composite multisol mosaic of navcam raw images taken to Sol 1059, July 30, 2015. Navcam camera raw images stitched and colorized. Inset: MAHLI color camera up close image of full depth drill hole at “Buckskin” rock target on Sol 1060. Credit: NASA/JPL-Caltech/MSSS/Ken Kremer/kenkremer.com/Marco Di Lorenzo
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NASA’s Curiosity Mars Science Laboratory (MSL) rover has successfully drilled into the first high silica rock target on Mars after recently discovering this new type of rock that’s unlike any found before – as she is about to mark the 3rd anniversary since the hair-raising touchdown on the Red Planet.

The SUV-sized rover bored a full depth hole into a Mars outcrop at a target dubbed “Buckskin” as commanded by the mission team over the weekend, after first conducting a mini drill test to assess the safety of the intended drill campaign to sample the alien rock interior beneath the Martian crater floor.

“This morning, the MSL operations team was very happy to see that drilling into Buckskin was successful!” said Ken Herkenhoff, Research Geologist at the USGS Astrogeology Science Center and an MSL science team member, in a mission update.

Confirmation of the success of the full depth drilling into “Buckskin” on Sol 1060 at the bright toned “Lion” outcrop came later after receipt of new high resolution images from the rover showing the approximately 1.6 cm (0.63 inch) diameter bore hole next to the initial mini hole test, along with the indicative residue of grey colored tailings from the Martian subsurface seen distributed around the new hole.

“Successful drilling at Buckskin!” added team member Professor John Bridges of the University of Leicester, England, in an update.

“Like the other drill holes this is showing how thin red Mars is,” Bridges elaborated.

Beneath a thin veneer of rusty red colored iron oxide, the Red Planet is remarkably grey as demonstrated by Curiosity’s prior drilling campaigns.

The hole was bored to a full depth of about 2.6 inches (6.5 centimeters) using the percussion drill on the terminus of the 7 foot-long (2.1 meter-long) robotic arm.

Curiosity rover successfully drills into Martian outcrop  at Buckskin rock target at current work site at base of Mount Sharp in August 2015, in this mosaic showing full depth drill hole and initial test hole, with grey colored subsurface tailings and mineral veins on surrounding Red Planet terrain.  This high resolution photo mosaic is a multisol composite of color images taken by the mast mounted Mastcam-100 color camera up to Sol 1060, July 31, 2015.   Credit:  NASA/JPL-Caltech/Ken Kremer/kenkremer.com/Marco Di Lorenzo
Curiosity rover successfully drills into Martian outcrop at Buckskin rock target at current work site at base of Mount Sharp in August 2015, in this mosaic showing full depth drill hole and initial test hole, with grey colored subsurface tailings and mineral veins on surrounding Red Planet terrain. This high resolution photo mosaic is a multisol composite of color images taken by the mast mounted Mastcam-100 color camera up to Sol 1060, July 31, 2015. Credit: NASA/JPL-Caltech/Ken Kremer/kenkremer.com/Marco Di Lorenzo

Buckskin was “chosen because this sedimentary horizon has some very high silica enrichments,” Bridges explains.

The findings of elevated levels of silicon as well as hydrogen were derived from data collected by Curiosity’s laser-firing Chemistry & Camera (ChemCam) and Dynamic Albedo of Neutrons (DAN) instruments on certain local area rocks.

Silica is a rock-forming compound containing silicon and oxygen, commonly found on Earth as quartz.

“High levels of silica could indicate ideal conditions for preserving ancient organic material, if present, so the science team wants to take a closer look,” say mission team officials.

See the rover at work reaching out with her robotic arm and drilling into Buckskin, as illustrated in our new mosaics of mastcam and navcam camera raw images created by the image processing team of Ken Kremer and Marco Di Lorenzo (above and below).

“Buckskin” sits at the base of Mount Sharp, a huge layered mountain that dominates the center of the 96 mile-wide (154 kilometers-wide) Gale Crater landing site.

Exploring the sedimentary layers of Mount Sharp, which towers 3.4 miles (5.5 kilometers) into the Martian sky, is the primary destination and goal of the rovers long term scientific expedition on the Red Planet.

The silica enrichment “may have occurred as the Gale sediments were altered by subsurface fluids after burial. As the basaltic composition was altered (as we saw from the clay and Fe oxide at Yellowknife Bay) ultimately a lot of silica is released which can be precipitated at horizons like this,” explains Bridges.

The Curiosity Mars Science Laboratory (MSL) rover safely touched down on the crater floor on August 5, 2012 following the unprecedented and nail-biting sky crane maneuver that delivered her with pinpoint precision to a landing site nearby Mount Sharp inside Gale Crater.

The goal of the drilling is to provide geologic context for Curiosity’s long term climb up the mountains sedimentary layers by collecting samples to assess the habitability of the Red Planet over billions of years of time.

So the plan was for the robot to process and pulverize the samples for eventual delivery to the onboard pair of miniaturized chemistry labs located inside her belly – SAM and CheMin. Tiny samples are fed to a trio of inlet ports on the rover deck through the sieved filters.

Images are taken to document and assess the entire sample collection and delivery process.

After gathering the Buckskin sample, a portion was transferred to the robots scoop for inspection.

Then the first portion was successfully fed into CheMin for inorganic elemental analysis over the weekend.

“The activities planned for last weekend completed successfully, including sample dropoff to CheMin and analysis of the minerals present,” Herkenhoff confirmed.

The one ton robots next steps involve “dumping the portion of the drill sample that has not been sieved and Mastcam, ChemCam, MAHLI, and APXS observations of the dump pile. ChemCam and Mastcam will also observe nearby targets “Martz” and “Mountain Home.” MAHLI will image the drill hole, tailings and CheMin inlet at night using its LEDs for illumination.”

Curiosity MAHLI camera image taken of Buckskin drill hole on Sol 1060 on July 31, 2015. Credit: NASA/JPL/MSSS
Curiosity MAHLI camera image taken of Buckskin drill hole on Sol 1060 on July 31, 2015. Credit: NASA/JPL/MSSS

After completing these science activities, the six wheeled rover will move on to the next exciting destination.

“It’s been a great couple of weeks at the Lion outcrop, but it’s time to move on,” says Lauren Edgar, Research Geologist at the USGS Astrogeology Science Center and an MSL science team member, in the latest mission update from today, August 4, Sol 1065.

“After a successful investigation that included observations by almost every science instrument, we’re getting ready to drive away tomorrow. That means that today (and tomorrow before we drive) is the last call for science observations.”

For about the past two months, the six wheeled robot has been driving around and exploring a geological contact zone named “Marias Pass” – an area on lower Mount Sharp, by examining the rocks and outcrops with her suite of state-of-the-art science instruments.

“Marias Pass” is a geological context zone where two rock types overlap – pale mudstone meets darker sandstone.

The prior hole was drilled at Telegraph Peak on Feb. 24, 2015, on Sol 908.

Curiosity recently celebrated 1000 Sols of exploration on Mars on May 31, 2015 – detailed here with our Sol 1000 mosaic also featured at Astronomy Picture of the Day on June 13, 2015.

NASA’s Martian Curiosity rover looks backs to 1000 Sols of science and exploration on the surface of the Red Planet.  Robot wheel tracks lead back through valley dunes.  Gale Crater rim seen in the distant hazy background.  Sol 997 (May 28, 2015) navcam camera raw images stitched and colorized. Credit:  NASA/JPL-Caltech/ Marco Di Lorenzo/Ken Kremer/kenkremer.com Featured on APOD on June 13, 2015
NASA’s Martian Curiosity rover looks backs to 1000 Sols of science and exploration on the surface of the Red Planet. Robot wheel tracks lead back through valley dunes. Gale Crater rim seen in the distant hazy background. Sol 997 (May 28, 2015) navcam camera raw images stitched and colorized. Credit: NASA/JPL-Caltech/ Marco Di Lorenzo/Ken Kremer/kenkremer.com
Featured on APOD on June 13, 2015

As of today, Sol 1065, August 4, 2015, she has driven some 11 kilometers and taken over 256,000 amazing images.

Curiosity has already accomplished her primary objective of discovering a habitable zone on the Red Planet – at the Yellowknife Bay area – that contains the minerals necessary to support microbial life in the ancient past when Mars was far wetter and warmer billions of years ago.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Curiosity extends robotic arm and conducts test drill at “Buckskin” rock target at bright toned “Lion” outcrop on the lower region of Mount Sharp on Mars, seen at right.   Gale Crater eroded rim seen in the distant background at left, in this composite multisol mosaic of navcam raw images taken to Sol 1059, July 30, 2015.  Navcam camera raw images stitched and colorized. Credit:  NASA/JPL-Caltech/Ken Kremer/kenkremer.com/Marco Di Lorenzo
Curiosity extends robotic arm and conducts test drill at “Buckskin” rock target at bright toned “Lion” outcrop on the lower region of Mount Sharp on Mars, seen at right. Gale Crater eroded rim seen in the distant background at left, in this composite multisol mosaic of navcam raw images taken to Sol 1059, July 30, 2015. Navcam camera raw images stitched and colorized. Credit: NASA/JPL-Caltech/Ken Kremer/kenkremer.com/Marco Di Lorenzo