Posted on by Tammy Plotner

Messier 35 – the NGC 2168 Open Star Cluster

The open star cluster Messier 35, with NGC 2158 and IC 2157 shown nearby. Credit: Wikisky

Welcome back to Messier Monday! In our ongoing tribute to the great Tammy Plotner, we take a look at the open star cluster known as Messier 35. Enjoy!

During the 18th century, famed French astronomer Charles Messier noted the presence of several “nebulous objects” in the night sky. Having originally mistaken them for comets, he began compiling a list of them so that others would not make the same mistake he did. In time, this list (known as the Messier Catalog) would come to include 100 of the most fabulous objects in the night sky.

One of these objects is known as Messier 35, a large open star cluster located in the northern constellation Gemini. M35 is the only Messier Object located in Gemini, and lies near the border with the adjacent constellations of  Taurus, Auriga and Orion. It consists several hundred stars that are scattered over an area that is about the same size as a Full Moon.

What You Are Looking At:

Messier 35 is 2,800 light years away from Earth and is relatively young as star clusters go, having formed only about 100 million years ago. The cluster occupies a region of space that is roughly 24 light years in diameter, and an area of 28 arc minutes on the sky – which is roughly equal to the size of the full Moon.

Image of Messier 35 obtained by the Two Micron All Sky Survey (2MASS). Credit: NASA/2MASS

M35 has a central mass that spans 11.4 light years (3.75 parsecs), with an estimated mass of 1600 to 3200 solar masses. While most of the molecule cloud from which it formed has been blown away, some of the material resides in the immediate vicinity of its stars. This can be seen in the way that light from its particularly bright blue stars is scattered to create a diffuse glow.

These are the hottest main sequence stars in the cluster, which correspond to a spectral classification of B3. M35 also contains more evolved stars, including several orange and yellow giants, which have longer lifespans than the more-massive blue stars (only a few tense of millions of years).

As a result, these stars will likely die out in the near future while the smaller stars continue to evolve, drastically affecting the cluster’s luminosity and appearance. In short, it will become redder and dimmer over time.

History of Observation:

This wonderful star cluster was discovered by Philippe Loys de Chéseaux 1745-46 and recovered again by John Bevis before 1750. However, we know and love it best as Messier Object 35, when it was penned into being by Charles Messier. As he wrote of the cluster upon observing it for the first time:

“In the night of August 30 to 31, 1764, I have observed a cluster of very small stars, near the left foot of Castor, little distant from the stars Mu and Eta of that constellation [Gemini]. When examining this star cluster with an ordinary refractor of 3 feet, it seemed to contain nebulosity; but having examined it with a good Gregorian telescope which magnified 104 times, I have noticed that it is nothing but a cluster of small stars, among which there are some which are of more light; its extension may be 20 minutes of arc. I have compared the middle of this cluster with the star Eta of Castor; its right ascension has been concluded at 88d 40′ 9″, and its declination at 24d 33′ 30″ north.”

Close-up of the Messier 35 open star cluster, showing its blue stars. Credit: Wikisky

How long would it be before the companion cluster was observed as well? My guess is Sir William Herschel’s time. Although Herschel would not publish his notes on Messier objects, they do state while observing M35 that “There is no central condensation to denote a globular form.”

And what of Admiral Smyth? He observed the cluster in September of 1836, though he appeared to have missed its companion cluster. As he recorded of M35 at the time:

“A cluster, near Castor’s right foot, in the Galaxy, discovered and registered by Messier in 1764. It presents a gorgeous field of stars from the 9th to the 16th magnitudes, but with the center of mass less rich than the rest. From the small stars being inclined to form curves of three, four, and often with a large [bright] one at the root of the curve, it somewhat reminds one of the bursting of a sky-rocket.”

A nice description, but if you see the companion cluster, you’ll know it!

Locating Messier 35:

Locating M35 in binoculars is fairly easy once you recognize the constellation of Gemini. You’ll find it just a little more than the average field of view north of Eta – the center most of the three “foot” stars on the northernmost twin. In the finderscope of a telescope, begin with Eta and starhop north until you spot a faint fuzzy in the finderscope.

The location of Messier 35 in the norther n Gemini constellation. Credit: IAU/Sky & Telescope magazine/Roger Sinnott & Rick Fienberg

Because Messier 35 is large, you’ll need low magnification to appreciate the size of this cluster in a telecope. It stands up well to moonlight and light polluted skies – as well as less than perfect sky conditions, but you will need around a 10″ or larger telescope to really begin to notice its companion cluster, NGC 2158. In smaller telescopes with good conditions, it will appear as a faint nebulous patch.

And as always, here are the quick facts on M35 to get you started!

Object Name: Messier 35
Alternative Designations: M35, NGC 2168
Object Type: Galactic Open Star Cluster
Constellation: Gemini
Right Ascension: 06 : 08.9 (h:m)
Declination: +24 : 20 (deg:m)
Distance: 2.8 (kly)
Visual Brightness: 5.3 (mag)
Apparent Dimension: 28.0 (arc min)

We have written many interesting articles about Messier Objects here at Universe Today. Here’s Tammy Plotner’s Introduction to the Messier Objects, , M1 – The Crab Nebula, M8 – The Lagoon Nebula, and David Dickison’s articles on the 2013 and 2014 Messier Marathons.

Be to sure to check out our complete Messier Catalog. And for more information, check out the SEDS Messier Database.

Sources:

Posted on by Ken Kremer

NASA’s Historic Pad 39A Back in Business with Maiden SpaceX Falcon 9 Blastoff to ISS and Booster Landing

Historic maiden blastoff of a SpaceX Falcon 9 rocket from Launch Complex 39A at the Kennedy Space Center on Dragon CRS-10 resupply mission to the International Space Station (ISS) at 9:38 a.m. EDT on Feb 19, 2017. Photo taken from the VAB roof. Credit: Ken Kremer/kenkremer.com
Historic maiden blastoff of a SpaceX Falcon 9 rocket from Launch Complex 39A at the Kennedy Space Center on Dragon CRS-10 resupply mission to the International Space Station (ISS) at 9:38 a.m. EDT on Feb 19, 2017. Photo taken from the VAB roof. Credit: Ken Kremer/kenkremer.com

KENNEDY SPACE CENTER, FL – After a six year lull NASA’s historic pad 39A roared back to business this morning with the dramatic maiden blastoff of a SpaceX Falcon 9 rocket, on a critical cargo delivery mission for NASA to the space station – while simultaneously landing the first stage back on the ground at the Cape on a secondary mission aimed at one day propelling humans to Mars.

The era of undesired idleness for America’s most famous launch pad was broken at last by the rumbling thunder of a SpaceX Falcon 9 that ignited at 9:38 a.m. EST Sunday morning, Feb 19, at Launch Complex 39A at NASA’s Kennedy Space Center.

The storied liftoff took place under heavily overcast skies with rain showers nearby under seemingly improbable weather conditions.

After liftoff, the rocket disappeared within seconds and never really reappeared in the local area until the final moments of the descent of the first stage – which nailed a nearly perfect dead center touchdown at Landing Zone 1 at the Cape some 9 minutes after launch.

Final descent of the SpaceX Falcon 9 1st stage landing as seen from the VAB roof under heavily overcast skies after Feb. 19, 2017 launch from pad 39 at the Kennedy Space Center. The booster successfully soft landed upright at Landing Zone-1 (LZ-1) accompanied by multiple sonic booms at Cape Canaveral Air Force Station, Florida, about 9 minutes after launch to the International Space Station (ISS). Credit: Ken Kremer/kenkremer.com

Nevertheless the Falcon 9 launch was a smashing success and probably the loudest I have ever witnessed since the shuttle era ended. Watching from atop the roof of the iconic VAB, I can report the building did experience some rather exciting rattling!

And it was SpaceX’s first daylight booster landing back at the Cape. The two earleir touchdowns were at night – most recently for the CRS-9 mission last summer in July 2016.

The goal of the mission was aimed at launching the SpaceX Dragon cargo freighter to deliver over 5500 pounds of science and supplies to the orbiting science outpost on the CRS-10 mission.

The Dragon spacecraft was successfully delivered in Earth orbit and is on course for the International Space Station (ISS) on the CRS-10 mission.

As a secondary side goal, SpaceX successfully carried out a propulsive soft landing of the 156 foot tall first stage of the Falcon 9 rocket on land at Cape Canaveral Air Force Station’s Landing Zone 1 (LZ-1), located about 9 miles south of KSC launch complex 39A.

The touchdown, like the launch was completely obscured until the final moments of the descent, when it suddenly and magnificently reappeared as a strange pale colored cylinder emitting a long yellow flame after dropping below the low hanging clouds.

The booster successfully accomplished a propulsive upright soft landing at Landing Zone-1 (LZ-1) accompanied by multiple sonic booms at Cape Canaveral Air Force Station, Florida, about 9 minutes after launch.

This was the 8th first stage booster that SpaceX has successfully recovered either by land or on a tiny droneship at sea over the past year.

The goal is to refurbish and recycle the 156 foot tall first stage boosters for relaunch with a new payload.

SpaceX CEO billionaire Elon Musk hopes that by reusing the spent booster, he can drastically cut the cost of access to space and that will one day lead to human colonies and a “City on Mars.”

Historic maiden blastoff of SpaceX Falcon 9 rocket from Launch Complex 39A at the Kennedy Space Center) at 9:38 a.m. EDT on Feb 19, 2017, on Dragon CRS-10 resupply mission to the International Space Station (ISS) for NASA. Credit: Ken Kremer/kenkremer.com

The dream of Bob Cabana, former astronaut and now Center Director at the Kennedy Space Center NASA’s, to turn KSC into a multiuser spaceport open to utilization by government, industry and entrepreneurs like SpaceX’s billionaire CEO Elon Musk is finally coming to fruition in a blaze of glory.

“I’m so proud of this team for all the dedication and hard work,” said Cabana.

SpaceX Falcon 9 rocket goes vertical at night atop Launch Complex 39A at the Kennedy Space Center on 19 Feb 2017 as seen after midnight from the pad perimeter. This is the first rocket rolled out to launch from pad 39A since the retirement of NASA’s Space Shuttles in July 2011. Liftoff of the CRS-10 mission slated for 19 Feb 2017. Credit: Ken Kremer/Kenkremer.com

Today’s launch counts as the first commercial launch from Kennedy’s historic pad.

The storied pad initially sent NASA astronauts to the Moon soon after the dawn of the Space Age during the Apollo/Saturn era and was then significantly overhauled to serve as the on ramp for NASA space shuttles for another three decades.

SpaceX has now transformed pad 39A for launches of the Falcon 9. A bright future lies ahead with launches of the heavy lift Falcon Heavy later this year and a renewal of manned launches of astronauts some time in 2018.

Dragon is carrying more than 5500 pounds of equipment, gear, food, crew supplies, hardware and NASA’s Stratospheric Aerosol Gas Experiment III (SAGE III) ozone mapping science payload in support of the Expedition 50 and 51 crew members.

SAGE III will measure stratospheric ozone, aerosols, and other trace gases by locking onto the sun or moon and scanning a thin profile of the atmosphere.

Engineers at work processing NASA’s Stratospheric Aerosol and Gas Experiment III, or SAGE III instrument inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida during exclusive visit by Ken Kremer/Universe Today in December 2016. Technicians are working in a super-clean ‘tent’ built in the SSPF high bay to protect SAGE III’s special optics and process the Ozone mapper for upcoming launch on the SpaceX CRS-10 Dragon cargo flight to the International Space Station in early 2017. Credit: Ken Kremer/kenkremer.com

The LIS lightning mapper will measure lightning from the altitude of the ISS. NASA’s RAVEN experiment will test autonomous docking technologies for spacecraft.

The research supplies and equipment brought up by Dragon will support over 250 scientific investigations to advance knowledge about the medical, psychological and biomedical challenges astronauts face during long-duration spaceflight.

As of today we are at last launching rockets again from the Kennedy Space Center – thanks to SpaceX and the Falcon 9. What a tremendous return to space !

Watch for Ken’s onsite CRS-10 mission reports direct from the Kennedy Space Center and Cape Canaveral Air Force Station, Florida.

SpaceX Falcon 9 rocket goes vertical at night atop Launch Complex 39A at the Kennedy Space Center on 19 Feb 2017 as seen after midnight from the pad perimeter. This is the first rocket rolled out to launch from pad 39A since the retirement of NASA’s Space Shuttles in July 2011. Liftoff of the CRS-10 mission slated for 19 Feb 2017. Credit: Ken Kremer/Kenkremer.com

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

Ken Kremer

SpaceX Falcon 9 rocket rests horizontal atop Launch Complex 39A at the Kennedy Space Center on 17 Feb 2017 as seen from inside the pad perimeter. Technicians work to prepare the rocket for launch. Liftoff of the CRS-10 mission is slated for 19 Feb 2017. Credit: Ken Kremer/Kenkremer.com

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Learn more about SpaceX CRS-10 launch to ISS, ULA SBIRS GEO 3 launch, EchoStar launch GOES-R launch, Heroes and Legends at KSCVC, OSIRIS-REx, InSight Mars lander, ULA, SpaceX and Orbital ATK missions, Juno at Jupiter, SpaceX AMOS-6, ISS, ULA Atlas and Delta rockets, Orbital ATK Cygnus, Boeing, Space Taxis, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events at Kennedy Space Center Quality Inn, Titusville, FL:

Feb 18 – 19: “SpaceX CRS-10 launch to ISS, ULA Atlas SBIRS GEO 3 launch, EchoStar 19 comsat launch, GOES-R weather satellite launch, OSIRIS-Rex, SpaceX and Orbital ATK missions to the ISS, Juno at Jupiter, ULA Delta 4 Heavy spy satellite, SLS, Orion, Commercial crew, Curiosity explores Mars, Pluto and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings

Posted on by Matt Williams

Juno Will Get No Closer To Jupiter Due To Engine Troubles

Jupiter’s south pole. captured by the JunoCam on Feb. 2, 2017, from an altitude of about 62,800 miles (101,000 kilometers) above the cloud tops. Credits: NASA/JPL-Caltech/SwRI/MSSS/John Landino

On July 4th, 2016, the Juno mission established orbit around Jupiter, becoming the second spacecraft in history to do so (after the Galileo probe). Since then, the probe has been in a regular 53.4-day orbit (known as perijove), moving between the poles to avoid the worst of its radiation belts. Originally, Juno’s mission scientists had been hoping to reduce its orbit to a 14-day cycle so the probe could make more passes to gather more data.

To do this, Juno was scheduled for an engine burn on Oct. 19th, 2016, during its second perijovian maneuver. Unfortunately, a technical error prevented this  from happening. Ever since, the mission team has been pouring over mission data to determine what went wrong and if they could conduct an engine burn at a later date. However, the mission team has now concluded that this won’t be possible.

The technical glitch which prevented the firing took place weeks before the engine burn was scheduled to take place, and was traced to two of the engines helium check valves. After the propulsion system was pressurized, the valves took several minutes to open – whereas they took only seconds during previous engine burns. Because of this, the mission leaders chose to postpone the firing until they could get a better understanding of why the glitch happened.

This amateur-processed image was taken on Dec. 11th, 2016, at 9:27 a.m. PST (12:27 p.m. EST), as NASA’s Juno spacecraft performed its third close flyby of Jupiter. Credits: NASA/JPL-Caltech/SwRI/MSSS/Eric Jorgensen

And after pouring over mission data from the past few months and performing calculations on possible maneuvers, Juno’s science team came to the conclusion that an engine burn might be counter-productive at this point. As Rick Nybakken, the Juno project manager at NASA’s Jet Propulsion Laboratory (JPL), explained in a recent NASA press release:

“During a thorough review, we looked at multiple scenarios that would place Juno in a shorter-period orbit, but there was concern that another main engine burn could result in a less-than-desirable orbit. The bottom line is a burn represented a risk to completion of Juno’s science objectives.”

However, this is not exactly bad news for the mission. It’s current perijove orbit takes it from one pole to the other, allowing it to pass over the cloud tops at a distance of around 4,100 km (2,600 mi) at its closest. At its farthest, the spacecraft reaches a distance of 8.1 million km (5.0 million mi) from the gas giant, which places it far beyond the orbit of Callisto.

During each pass, the probe is able to peak beneath the thick clouds to learn more about the planet’s atmosphere, internal structure, magnetosphere, and formation. And while a 14-day orbital period would allow for it to conduct 37 orbits before its mission is scheduled to wrap up, its current 53.4-day period will allow for more information to be collected on each pass.

And as Thomas Zurbuchen, the associate administrator for NASA’s Science Mission Directorate in Washington, declared:

“Juno is healthy, its science instruments are fully operational, and the data and images we’ve received are nothing short of amazing. The decision to forego the burn is the right thing to do – preserving a valuable asset so that Juno can continue its exciting journey of discovery.”

In the meantime, the Juno science team is still analyzing the returns from Juno’s four previous flybys – which took place on August 27th, October 19th, December 11th, and February 2nd, 2017, respectively. With each pass, more information is revealed about the planet’s magnetic fields, aurorae, and banded appearance. The next perijovian maneuver will take place on March 27th, 2017, and will result in more images and data being collected.

Before the mission concludes, the Juno spacecraft will also explore Jupiter’s far magnetotail, its southern magnetosphere, and its magnetopause. The mission is also conducting an outreach program with its JunoCam, which is being guided with assistance of the public. Not only can people vote on which features they want imaged with every flyby, but these images are accessible to “citizen scientists” and amateur astronomers.

Under its current budget plan, Juno will continue to operate through to July 2018, conducting a total of 12 science orbits. At this point, barring a mission extension, the probe will be de-orbited and burn up in Jupiter’s outer atmosphere. As with the Galileo spacecraft, this will be as to avoid any possibility of impact and biological contamination with one of Jupiter’s moons.

Further Reading: NASA

Posted on by Ken Kremer

SpaceX Falcon 9 Goes Vertical with Station Science at KSC Pad 39A – Watch Live Feb. 19

SpaceX Falcon 9 rocket goes vertical at night atop Launch Complex 39A at the Kennedy Space Center on 19 Feb 2017 as seen after midnight from the pad perimeter. This is the first rocket rolled out to launch from pad 39A since the retirement of NASA’s Space Shuttles in July 2011. Liftoff of the CRS-10 mission slated for 19 Feb 2017. Credit: Ken Kremer/Kenkremer.com
SpaceX Falcon 9 rocket goes vertical at night atop Launch Complex 39A at the Kennedy Space Center on 18 Feb 2017 as seen after midnight from the pad perimeter. This is the first rocket rolled out to launch from pad 39A since the retirement of NASA’s Space Shuttles in July 2011. Liftoff of the CRS-10 mission slated for 19 Feb 2017. Credit: Ken Kremer/Kenkremer.com

KENNEDY SPACE CENTER, FL – Just hours before blastoff, the first ever SpaceX Falcon 9 set to soar to the space station from historic pad 39A at NASA’s Kennedy Space Center (KSC), the rocket went vertical below delightfully dark skies on the Florida Space Coast.

UPDATE- The launch was scrubbed until Feb. 19 after a hold was called to deal with a thrust vector control issue. Story updated

Packed with over a thousand pounds of research experiments and science instruments probing the human body and our home planet from the heavens above, the Falcon 9 rocket is poised for liftoff at 9:38 a.m., Sunday morning, Feb. 19, from Launch Complex 39A (LC-39A) at KSC.

Everything is on track for Sunday’s launch of the 229 foot tall (70 meter) SpaceX Falcon 9 on the NASA contracted SpaceX CRS-10 resupply mission for NASA to the million pound orbiting lab complex.

And the weather looks promising at this time.

At a meeting with reporters at pad 39A on Friday, Feb. 17, SpaceX President Gwynne Shotwell confirmed the success of the static fire test of the two stage rocket and all nine first stage Merlin 1D engines conducted on Sunday afternoon, Feb. 12 – minus the SpaceX Dragon cargo freighter payload.

SpaceX Falcon 9 rocket rests horizontal atop Launch Complex 39-A at the Kennedy Space Center on 17 Feb 2017 as seen from inside the pad perimeter. This is the first rocket rolled out to launch from pad 39A since the retirement of NASA’s Space Shuttles in July 2011. Liftoff of the CRS-10 mission slated for 19 Feb 2017. Credit: Ken Kremer/Kenkremer.com

The successful test firing of the engines cleared the path to orbit for liftoff of Dragon on a critical cargo flight for NASA to deliver over two and a half tons of supplies and science on the CRS-10 resupply mission to the six person crew living and working aboard the International Space Station (ISS).

Shotwell then said technicians integrated with the unmanned Dragon CRS-10 cargo freighter with the Falcon 9 rocket.

SpaceX President Gwynne Shotwell meets the media at Launch Complex 39A at the Kennedy Space Center on 17 Feb 2017 ahead of launch of the CRS-10 mission on 19 Feb 2017. Credit: Julian Leek

The 22 story tall rocket rolled out of the SpaceX processing hangar at the perimeter fence and then up the incline to the top of pad 39A on Thursday morning using a dedicated transporter-erector, so ground crews could begin final preparations for the Saturday morning blastoff. Now reset to Sunday.

SpaceX Falcon 9 rocket goes vertical at night atop Launch Complex 39-A at the Kennedy Space Center on 19 Feb 2017 as seen after midnight from the pad perimeter. This is the first rocket rolled out to launch from pad 39A since the retirement of NASA’s Space Shuttles in July 2011. Liftoff of the CRS-10 mission slated for 18 Feb 2017. Credit: Ken Kremer/Kenkremer.com

Thousands and thousands of spectators from across the globe, local residents, media and scientists and engineers and their families have flocked to the Florida Space Coast, filling area hotels to witness the historic maiden blastoff of a Falcon 9 from seaside pad 39A at KSC at 9:38 a.m. EST Sunday, Feb. 19.

SpaceX will also attempt to achieve a secondary mission goal of landing the 156 foot tall first stage of the Falcon 9 rocket on land at Cape Canaveral Air Force Station’s Landing Zone 1, located a few miles south of launch pad 40.

If you can’t personally be here to witness the launch in Florida, you can also watch NASA’s live coverage on NASA Television and the agency’s website.

The SpaceX/Dragon CRS-10 launch coverage will be broadcast on NASA TV beginning at 8:30 a.m. EDT Saturday, Feb. 18, with additional commentary on the NASA launch blog.

SpaceX will also feature their own live webcast beginning approximately 20 minutes before launch at 9:41 a.m. EDT.

You can watch the launch live at NASA TV at – http://www.nasa.gov/nasatv

You can also watch the launch live at SpaceX Webcast at – spacex.com/webcast

The launch window is instantaneous, meaning that any delays due to weather or technical issues results in a minimum 1 day postponement.

The long awaited FAA launch license was finally granted at the last minute on Friday afternoon – less than 24 hours before launch.

The weather outlook currently is improving from earlier in the week and looks good for Saturday morning with a 70% chance of favorable condition at launch time. The concerns are for thick clouds according to Air Force meteorologists with the 45th Space Wing at Patrick Air Force Base.

In case of a scrub for any reason on Feb. 18, the backup launch opportunity is 9:38 a.m. Sunday, Feb. 19. with NASA TV coverage starting at about 8:10 a.m. EDT.

CRS-10 marks only the third time SpaceX has attempted a land landing of the 15 story tall first stage booster.

Shotwell confirmed they are attempting the secondary mission of landing the 156 foot tall first stage of the Falcon 9 rocket on land at Cape Canaveral Air Force Station’s Landing Zone 1, located about 9 miles south of launch pad 39a.

And it won’t take long to learn the results – the ground landing at LZ -1 will take place about 9 minutes after liftoff.

Engineers at work processing NASA’s Stratospheric Aerosol and Gas Experiment III, or SAGE III instrument inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida during exclusive visit by Ken Kremer/Universe Today in December 2016. Technicians are working in a super-clean ‘tent’ built in the SSPF high bay to protect SAGE III’s special optics and process the Ozone mapper for upcoming launch on the SpaceX CRS-10 Dragon cargo flight to the International Space Station in early 2017. Credit: Ken Kremer/kenkremer.com

This marks the first time any fully integrated rocket has stood on pad 39A for a scheduled launch since the retirement of NASA’s Space Shuttles in July 2011 on the STS-135 mission to the space station.

The historic NASA launch pad was formerly used to launch both America’s space shuttles and astronauts on Apollo/Saturn V moon landing missions as far back as the 1960s.

Dragon is carrying more than 5500 pounds of equipment, gear, food, crew supplies, hardware and NASA’s Stratospheric Aerosol Gas Experiment III (SAGE III) ozone mapping science payload in support of the Expedition 50 and 51 crew members.

SAGE III will measure stratospheric ozone, aerosols, and other trace gases by locking onto the sun or moon and scanning a thin profile of the atmosphere.

The LIS lightning mapper will measure lightning from the altitude of the ISS. NASA’s RAVEN experiment will test autonomous docking technologies for spacecraft.

The research supplies and equipment brought up by Dragon will support over 250 scientific investigations to advance knowledge about the medical, psychological and biomedical challenges astronauts face during long-duration spaceflight.

Watch for Ken’s onsite CRS-10 mission reports direct from the Kennedy Space Center and Cape Canaveral Air Force Station, Florida.

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

Ken Kremer

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Learn more about SpaceX CRS-10 launch to ISS, ULA SBIRS GEO 3 launch, EchoStar launch GOES-R launch, Heroes and Legends at KSCVC, OSIRIS-REx, InSight Mars lander, ULA, SpaceX and Orbital ATK missions, Juno at Jupiter, SpaceX AMOS-6, ISS, ULA Atlas and Delta rockets, Orbital ATK Cygnus, Boeing, Space Taxis, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events at Kennedy Space Center Quality Inn, Titusville, FL:

Feb 17- 19: “SpaceX CRS-10 launch to ISS, ULA Atlas SBIRS GEO 3 launch, EchoStar 19 comsat launch, GOES-R weather satellite launch, OSIRIS-Rex, SpaceX and Orbital ATK missions to the ISS, Juno at Jupiter, ULA Delta 4 Heavy spy satellite, SLS, Orion, Commercial crew, Curiosity explores Mars, Pluto and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings

SpaceX Falcon 9 rocket rests horizontal atop Launch Complex 39-A at the Kennedy Space Center on 16 Feb 2017 as seen from Launch Complex 39-B. This is the first rocket rolled out to launch from pad 39A since the retirement of NASA’s Space Shuttles in July 2011. Liftoff of the CRS-10 mission slated for 19 Feb. Credit: Ken Kremer/Kenkremer.com
First SpaceX Falcon 9 rocket atop Launch Complex 39A at the Kennedy Space Center comes to life with successful static hot fire test at 430 p.m. on 12 Feb. 2017 as seen from Space View Park, Titusville, Fl. Liftoff is slated for no earlier than 19 Feb. 2017. Credit: Ken Kremer/Kenkremer.com
Posted on by Bob King

A Region On Mars With Recent Water Is About To Get Major Attention

Credit: NASA/ JPL-Caltech
Striations exposed on the surface between Martian sand dunes (one pictured at top) in Lucaya Crater indicate fluctuating levels of salty groundwater. At “a” we see possible cross beds which are tilted layers of sand within larger layers deposited by wind or water. At b, dark and light strata are similar to that exposed in the dune at top and resemble the striations seen in the Namib Desert on Earth. The photo was taken by NASA’s Mars Reconnaissance Orbiter in infrared, red and blue light. Credit: NASA/JPL-Caltech

Researcher Dr. Mary Bourke from Trinity College Dublin have discovered a patch of land in an ancient valley in Mars’ Lucaya Crater that appears to have held water in the not-too-distant past, making it a prime target to search for past life forms on the Red Planet. Signs of water past and present pop up everywhere on Mars from now-dry, wriggly riverbeds snaking across arid plains to water ice exposed at the poles during the Martian summer.

A valley lined with sand dunes crosses the southern floor of the 21-mile-wide Lucaya Crater, located at latitude 11° south and longitude 52° east on Mars. Striations found between the dunes may have been created by recent water flows. The box shows the area pictured in the close up above. The 3.7-mile-long valley measures between 2,000 and 2,600 feet wide. Credit: NASA/JPL-Caltech with additions by the author

On Earth, Bourke had done previous studies of dunes in the Namib Desert near Walvis Bay, Namibia and noted “arctuate striations” — crusty arcs of sand cemented by water and minerals — on the surfaces of migrating sand dunes using photos taken by satellite. She subsequently assembled a team to check them out on the ground and discovered that the striations resulted when dune materials had been chemically cemented by salts left behind by evaporating groundwater.

“On Earth, desert dune fields are periodically flooded by water in areas of fluctuating groundwater, and where lakes, rivers and coasts are found in proximity,” said Bourke. These periodic floods leave tell-tale patterns behind them.” Once the material had been cemented, it hardens and remains behind as the dunes continue to migrate downwind.

Compare these cemented arctuate striations between dunes near Walvis Bay, Namibia with those in Lucaya Crater’s valley in the earlier image. White arrows highlight particularly prominent examples. Photos in (b) and (c) were taken from the ground. The excavated pit in (c) shows that the dipping sediment layers below the surface match the protruding layers on the surface. Alternating light and dark layers have different salt composition and grain size. Credit: Google Earth (left) and Dr Mary Bourke, Trinity College Dublin

Next, Bourke and colleague Prof. Heather Viles, from the University of Oxford, examined close up images of Mars taken with the Mars Reconnaissance Orbiter (MRO) and experienced a flash of insight: “You can imagine our excitement when we scanned satellite images of an area on Mars and saw this same patterned calling card, suggesting that water had been present in the relatively recent past.”

Bourke examined similar arcuate striations exposed on the surface between dunes, indications of fluctuating levels of salty groundwater during a time when dunes were actively migrating down the valley.

A possible scenario: an asteroid impacts Mars, forming Lucaya Crater and unleashing water flows that created the crater valley and striations.

So where did the water come from to create the striations in the crater valley? Bourke and Viles propose that water may have been released by the impact that formed Lucaya Crater especially if the target area was rich in ice.

Extreme temperatures during the impact would have vaporized water but also possibly melted other ice to flow for a time as liquid water. Alternatively, the impact may have jump-started hydrothermal activity as hot springs-style underground flows.

Flowing water would have created the valley and saturated the soils there with salty water. In dry periods, erosion from the wind would have picked away the water-eroded sands to create the striking pattern of repeating dunes we see to this day.

Water, water everywhere … once upon a time. Nanedi Valles, a roughly 500-mile-long (800 km) valley extending southwest-northeast and photographed by Mars Express. In this view, Nanedi Valles ranges from approximately 0.5 – 3 miles (0.8- to 5.0 km) wide and extends to a maximum of about 1,640 feet (500 meters) below the surrounding plains. The valley’s origins remain unclear, with scientists debating whether erosion caused by ground-water outflow, flow of liquid beneath an ice cover or collapse of the surface in association with liquid flow is responsible. In all cases, it’s clear that water was involved. Copyright ESA/DLR/FU Berlin (G. Neukum)

Carbonate rocks, which require liquid water to form are dissolved by the same, have been detected in the valley using spectroscopy and could have served as the cement to solidify sands between the moving dunes. That in concert with alternating dry and wet periods would create the striations seen in the MRO photos.

“These findings are hugely significant,” said Bourke. “Firstly, the Martian sand dunes show evidence that water may have been active near Mars’ equator — potentially in the not-too-distant past. And secondly, this location is now a potential geological target for detecting past life forms on the Red Planet, which is important to those involved in selecting sites for future missions.”

Posted on by Matt Williams

Ceres Provides First Detection Of Life’s Building Blocks In Asteroid Belt

Enhanced color-composite image, made with data from the framing camera aboard NASA's Dawn spacecraft, shows the area around Ernutet crater. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

NASA’s Dawn spacecraft has been poking around Ceres since it first established orbit in March of 2015. In that time, the mission has sent back a steam of images of the minor planet, and with a level of resolution that was previously impossible. Because of this, a lot of interesting revelations have been made about Ceres’ composition and surface features (like its many “bright spots“).

In what is sure to be the most surprising find yet, the Dawn spacecraft has revealed that Ceres may actually possess the ingredients for life. Using data from the Dawn spacecraft’s Visible and InfraRed Mapping Spectrometer (VIMS), an international team of scientists has confirmed the existence of organic molecules on Ceres – a find which could indicate that it has conditions favorable to life.

These findings – which were detailed in a study titled “Localized aliphatic organic material on the surface of Ceres” – appeared in the Feb. 17th, 2017, issue of Science. For the sake of their study, the international team of researchers – which was led by Maria Cristina de Sanctis from the National Institute of Astrophysics in Rome, Italy – showed how Dawn sensor data pointed towards the presence of aliphatic compounds on the surface.

Enhanced color-composite image from Dawn’s visible and infrared mapping spectrometer, showing the area around Ernutet Crater on Ceres. Credit: NASA/JPL-Caltech/UCLA/ASI/INAF

Aliphatics are a type of organic compound where carbon atoms form open chains that are commonly bound with oxygen, nitrogen, sulfur and chlorine. The least complex aliphatic is methane, which has been detected in many locations across the Solar System – including in the Martian atmosphere and in both liquid and gaseous form on Saturn’s moon Titan.

From their study, Dr. de Sanctis and her colleagues determined that spectral data obtained by the VIMS instrument corresponded to the presence of these hydrocarbons in a region outside of the Ernutet crater. This crater, which is located in the northern hemisphere of Ceres, measures about 52 km (32 mi) in diameter. The aliphatic compounds which were detected were localized in a roughly 1000 square kilometers region around it.

The team ruled out the possibility that these organic molecules were deposited from an external source – such as a comet or carbonaceous chondrite asteroid. While both have been shown to contain organic molecules in their interior in the past, the largest concentrations on Ceres were distributed discontinuously across the southwest floor and rim of the Ernutet crater and onto an older, highly degraded crater.

In addition, other organic-rich areas were spotted being are scattered to the northwest of the crater. As Dr.  Maria Cristina De Sanctis told Universe Today via email:

“The composition that we see on Ceres is similar to some meteorites that has organics and thus we searched for this material. We considered both endogenous and exogenous origin, but the last one seems less likely due to several reasons including the larger abundance observed on Ceres with respect the meteorites.”

Dawn spacecraft data, showing the organics absorption band (warmer colors indicate highest concentrations). Credit: NASA/JPL-Caltech/UCLA/ASI/INAF/MPS/DLR/IDA

Instead, they considered the possibility that they organic molecules were endogenous in origin. In the past, surveys have shown evidence of hydrothermal activity on Ceres, which included signs of surface renewal and fluid mobility. Combined with other surveys that have detected ammonia-bearing hydrated minerals, water ice, carbonates, and salts, this all points towards Ceres having an environment that can support prebiotic chemistry.

“The overall composition of Ceres can favor the pre-biotic chemistry,” said De Sanctis. “Ceres has water ice and minerals (carbonates and phyllosilicates) derived  from pervasive aqueous  alteration of rocks. It has also material that we think is formed in hydrothermal environments.  All these information indicate condition not hostel to biotic molecules.”

These findings are certainly significant in helping to determine if life could exist on Ceres – in a way that is similar to Europa and Enceladus, locked away beneath its icy mantle. But given that Ceres is believed to have originated 4.5 billion years ago (when the Solar System was still in the process of formation), this study is also significant in that it can shed light on the origin, evolution, and distribution of organic life in our the Solar System.

Other members of the research team include researchers from the department of Earth Planetary and Space Sciences at the University of California, the Department of Earth and Planetary Sciences at the University of Tennessee, the Department of Earth, Environmental, and Planetary Sciences at Brown University, the Southwest Research Institute (SwRI), the NASA Goddard Space Flight Center, and NASA’s Jet Propulsion Laboratory.

Further Reading: ScienceMag, SwRI

Posted on by Evan Gough

Earth Just Got A New Continent

This simplified map of the continents shows the new continent Zealandia in grey. Image: Mortimer et. al. 2017, GSA Today.

We tend to lump New Zealand and Australia together. They’re similar culturally and share the same geographical position, relative to North America and Europe, anyway. But according to a new paper published in the Geological Society of America Today, it looks like New Zealand and their neighbor New Caledonia are actually their own continent: ‘Zealandia.’

Continent means something different to geographers and geologists. To be considered a geological continent, like Zealandia, the area in question has to satisfy a few conditions:

  • the land in question has to be higher than the ocean floor
  • it has to include a broad range of siliceous igneous, metamorphic, and sedimentary rocks
  • it has to have thicker crust than the ocean floor that surrounds it
  • it has to have well-defined limits, and be large enough to be considered a continent

In Geology, the first three points are well-understood. But as the authors say in the introduction to their paper, “…the last point—how “major” a piece of continental crust has to be to be called a continent—is almost never discussed… .” Since the Earth has so many micro-continents and continental fragments, defining how large something has to be to be called a continent is challenging. But the researchers did their homework.

They noted that the term “Zealandia” has been used before to describe New Zealand and surrounding regions. But the boundaries were never fully explored. 94% of this new continent is submerged, which helps explain why it’s taken this long to be identified.

This map shows the spatial limits of Zealandia. Note the dotted red line that delineates continental crust from ocean crust. Zealandia is also bisected by a plate boundary between the Pacific Plate and the Australian Plate. Image: Mortimer et. al. 2017, GSA Today

Zealandia seemed to be a collection of broken pieces, but new data collected over the years has challenged that interpretation. Recent satellite data has given us new gravity and elevation maps of the seafloor. This data has shown that Zealandia is a unified region large as large as India.

“This is not a sudden discovery but a gradual realization; as recently as 10 years ago we would not have had the accumulated data or confidence in interpretation to write this paper.”

As the authors point out in their paper, it took a while to determine that Zealandia is a continent. There was no Eureka moment. “This is not a sudden discovery but a gradual realization; as recently as 10 years ago we would not have had the accumulated data or confidence in interpretation to write this paper.”

Besides satisfying our intellectual curiosity about our planet, the discovery is important for other reasons. A proper understanding of the plate structures and continental boundaries is important to other sciences, and may trigger further understandings that we can’t predict yet. It may also point to other areas of research.

Also, many treaties rely on the agreed upon delineation of maritime and continental boundaries, including rights to fish stocks and underground resources. While the recognition of Zealandia seems clear from a scientific standpoint, it remains to be seen if it will be accepted politically.

Posted on by Evan Gough

The Universe Has A Lithium Problem

This illustration shows the evolution of the Universe, from the Big Bang on the left, to modern times on the right. Image: NASA

Over the past decades, scientists have wrestled with a problem involving the Big Bang Theory. The Big Bang Theory suggests that there should be three times as much lithium as we can observe. Why is there such a discrepancy between prediction and observation?

To get into that problem, let’s back up a bit.

The Big Bang Theory (BBT) is well-supported by multiple lines of evidence and theory. It’s widely accepted as the explanation for how the Universe started. Three key pieces of evidence support the BBT:

But the BBT still has some niggling questions.

The missing lithium problem is centred around the earliest stages of the Universe: from about 10 seconds to 20 minutes after the Big Bang. The Universe was super hot and it was expanding rapidly. This was the beginning of what’s called the Photon Epoch.

At that time, atomic nuclei formed through nucleosynthesis. But the extreme heat that dominated the Universe prevented the nuclei from combining with electrons to form atoms. The Universe was a plasma of nuclei, electrons, and photons.

Only the lightest nuclei were formed during this time, including most of the helium in the Universe, and small amounts of other light nuclides, like deuterium and our friend lithium. For the most part, heavier elements weren’t formed until stars appeared, and took on the role of nucleosynthesis.

The problem is that our understanding of the Big Bang tells us that there should be three times as much lithium as there is. The BBT gets it right when it comes to other primordial nuclei. Our observations of primordial helium and deuterium match the BBT’s predictions. So far, scientists haven’t been able to resolve this inconsistency.

But a new paper from researchers in China may have solved the puzzle.

One assumption in Big Bang nucleosynthesis is that all of the nuclei are in thermodynamic equilibrium, and that their velocities conform to what’s called the classical Maxwell-Boltzmann distribution. But the Maxwell-Boltzmann describes what happens in what is called an ideal gas. Real gases can behave differently, and this is what the researchers propose: that nuclei in the plasma of the early photon period of the Universe behaved slightly differently than thought.

This graphics shows the distribution of early primordial light elements in the Universe by time and temperature. Temperature along the top, time along the bottom, and abundance on the side. Image: Hou et al. 2017

The authors applied what is known as non-extensive statistics to solve the problem. In the graph above, the dotted lines of the author’s model predict a lower abundance of the beryllium isotope. This is key, since beryllium decays into lithium. Also key is that the resulting amount of lithium, and of the other lighter nuclei, now all conform to the amounts predicted by the Maxwell-Boltzmann distribution. It’s a eureka moment for cosmology aficionados.

The decay chains of primordial light nuclei in the early days of the Universe. Notice the thin red arrows between Beryllium and Lithium at 10-13, the earliest time shown on this chart. Image: Chou et. al.

What this all means is scientists can now accurately predict the abundance in the primordial universe of the three primordial nuclei: helium, deuterium, and lithium. Without any discrepancy, and without any missing lithium.

This is how science grinds away at problems, and if the authors of the paper are correct, then it further validates the Big Bang Theory, and brings us one step closer to understanding how our Universe was formed.

Eureka!

Posted on by Nancy Atkinson

Poopy Ideas Net $30,000 For Challenge Finalists

NASA's Space Poop Challenge. Credit: NASA.

You may have thought that whole ‘going to the bathroom in space’ issue had already been resolved, with the International Space Station operating continuously with crew on board since 2000. But as we reported back in December, long-duration, deep-space human missions will create a possible scenario of needing to take care of human waste in a spacesuit longer than just a couple of hours. And so NASA and HeroX issued a Space Poop Challenge, to create an “in-suit waste management system” that can handle six days’ worth of bathroom needs.

HeroX announced this week that five thousand different teams had submitted entries to this challenge, but Air Force officer and flight surgeon Thatcher Cardon won the $15,000 top prize by thinking out of the box, or out of the spacesuit in this case. His concept figures out a way to handle waste by getting it outside of and away from the spacesuit.

For this challenge, NASA wanted to crowdsource the concept of getting away from the MAGs (Maximum Absorbency Garment) – basically adult diapers – currently worn during 7-8 hour-long spacewalks. They need something to handle ‘bathroom needs’ for long duration missions or even an emergency (think Mark Watney) where astronauts might need to spend several days in a spacesuit.

A concept of the MACES Perineal Access & Toileting System, with a perineal access port in the crotch area. Image Courtesy Dr. Thatcher Cardon

Drawing on his “flight surgeon expertise and borrowing a design from the lingerie industry,” Cardon created the “MACES Perineal Access & Toileting System” that places a small airlock opening called the “perineal access port” in the crotch — or “fig leaf area” as Cardon’s press release called it — through which various devices can be inserted to handle liquid or solid waste.

Cardon said the port imitates surgical technologies such as laparoscopy that use small openings to insert surgical instruments and uses devices that are maneuverable with a spacesuit-style gloved hand.

The inflatable bed pan as part of the MACES Perineal Access & Toileting System. Image courtesy Courtesy Dr. Thatcher Cardon.

And if you think inflatable space modules are the wave of the future, you’ll love Cardon’s proposal for an inflatable bed pan. The bedpan has an absorbent liner and is can be slide through the port. Once in place inside the spacesuit, it inflates to capture the waste.

Cardon also invented a diaper made of one, long strip. The strip has segments of absorbent gel alternated with plastic segments that layer over the crotch. When one layer is soaked, the astronaut pulls it out through the port and tears it off like tape from a dispenser, exposing a fresh layer of gel.

Cardon said he filed a patent on his devices this week, as many NASA technologies have found widespread use on Earth. Cardon thinks his ideas may have extensive application. For example, the strip diaper might reduce the number of diaper changes needed by bedridden patients.

The $10,000 second-place prize went to three doctors from Houston that called themselves the “Space Poop Unification of Doctors” team. They created a devices that would direct waste through tube that empties into a small storage tank inside the suit.

In third place for a $5,000 prize was the “SWIMSuit—Zero Gravity Underwear.” These underwear disinfect the waste and store it inside the suit.

Dr. Thatcher Cardon working on his inventions for the NASA-HeroX Space Poop Challenge. Image Courtesy Dr. Thatcher Cardon.

Cardon said in a press release that his involvement in the Space Poop Challenge was “a ton of fun,” and that he involved his entire family and co-workers, and that his small family practice office “was in an uproar” while he was working on his inventions.

Cardon said he will celebrate his win with a poop themed party for his colleagues, family, base community and church friends, complete with poop emoji cupcakes, special-ordered from the local bakery.

Thanks to Dr. Cardon for sharing his images with Universe Today.

Find out more about the Space Poop Challenge here.