Artist's impression of the European Space Agency/JAXA BepiColombo mission in operation around Mercury. Credit: Astrium
After facing down a couple of delays due to technical difficulties, Europe’s and Japan’s first Mercury orbiter is entering some of the final stages ahead of its 2016 launch. Part of the BepiColombo orbiter moved into a European testing facility this past week that will shake, bake and otherwise test the hardware to make sure it’s ready for its extreme mission.
Because Mercury is so close to the Sun, BepiColombo is going to have a particularly harsh operating environment. Temperatures there will soar as high as 350 degrees Celsius (662 degrees Fahrenheit), requiring officials to change the chamber to simulate these higher temperatures. Time will tell if the spacecraft is ready for the test.
BepiColombo is also special because it includes not one orbiting spacecraft, but two. Flying in different orbits, the Mercury Planetary Orbiter and the Mercury Magnetospheric Orbiter will try to learn more about this mysterious planet. NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry and Ranging) spacecraft has spent the past few years orbiting Mercury, but before then, we had very little information on the planet. (And before MESSENGER, only brief flybys from NASA’s Mariner 10 in the 1970s turned up spacecraft-based information on Mercury.)
MESSENGER has turned up quite a few surprises. It’s showed us more about the nature of Mercury’s tenuous atmosphere and it’s discovered probable water ice (!) in permanently shadowed areas, among other things. The European Space Agency and Japan hope to push our understanding of the Sun’s closest planet when BepiColombo gets there in 2024.
On Oct. 30, 2014, the Mercury Planetary Orbiter (part of the BepiColombo mission) was moved into the European Space Agency’s space simulator for testing ahead of the expected 2016 launch. Credit: ESA–A. Le’Floch
There are so many questions that Mercury presents us, and BepiColombo is trying to answer a few of those. For example, Mercury’s density is higher than the rest of the other terrestrial planets for reasons that are poorly understood. Scientists aren’t sure if its core is liquid or solid, or even it has active plate tectonics as Earth does. Its magnetic field is a mystery, given that Mars and Venus and the Moon don’t have any. And there are tons of questions too about its atmosphere, such as how it is produced and how the magnetic field and solar wind work together.
The two spacecraft will be carried together to Mercury’s orbit along with a component called the Mercury Transfer Model (MTM), which will push the spacecraft out there using solar-electric propulsion. Just before BepiColombo enters orbit, MTM will be jettisoned and the Mercury Polar Orbiter will ensure the Mercury Magnetospheric Orbiter receives the needed resources to survive until the two spacecraft move into their separate orbits, according to the European Space Agency.
As for why it takes so long to get out there, to save on fuel the mission will swing by Earth, Venus and Mercury to get to the right spot. Once the two spacecraft are ready to go, they’re expected to last a year in orbit — with a potential one-year extension.
A 3-D image of Comet 67P/Churyumov–Gerasimenko taken from the Philae lander as it descended. The picture is a combination of two images from the Rosetta Lander Imaging System (ROLIS) taken about an hour before landing at 10:34 a.m. EST (3:34 p.m. UTC) on Nov. 12, 2014. Credit: ESA/Rosetta/Philae/ROLIS/DLR
The first soft comet landing Nov. 12 showed us how space missions can quickly drift to the unexpected. Philae’s harpoons to secure it failed to fire, and the spacecraft drifted for an incredible two hours across Comet 67P/Churyumov–Gerasimenko before coming to rest … somewhere. But where? And can the orbiting Rosetta spacecraft find it?
That’s been the obsession of the European Space Agency for the past couple of weeks. Controllers have pictures from Philae during its descent and brief science operations on the surface. They’ve managed to capture the little lander in incredible photographs from Rosetta. But the key to finding Philae will likely come from a different experiment altogether.
The experiment is called the Comet Nucleus Sounding Experiment by Radio wave Transmission (CONSERT) and is a piece of work between both lander and orbiter. Rosetta sent radio signals to Philae on the surface to get a better sense of what the insides of 67P are made of. But it turns out it can also be used to pinpoint the lander.
ESA recently released a landing zone of where, based on CONSERT data, it believes the lander came to rest. The next step will be to get the Rosetta spacecraft to examine the area in high-definition.
An estimation of Philae’s landing site on Comet 67P/Churyumov–Gerasimenko, based on data from the Comet Nucleus Sounding Experiment by Radio wave Transmission (CONSERT) experiment. Credit: ESA/Rosetta/Philae/CONSERT
“By making measurements of the distance between Rosetta and Philae during the periods of direct visibility between orbiter and lander, as well as measurements made through the core, the team have been able to narrow down the search to the strip presented in the image shown above,” ESA stated. “The determination of the landing zone is dependent on the underlying comet shape model used, which is why there are two candidate regions marked.”
Finding Philae is not only a goal to fulfill curiosity, but also to learn more about the comet itself. The team needs to know where the lander is sitting before they can fully analyze the CONSERT data, they said. So the search continues for the hibernating lander, which right now is in a shady spot and unable to transmit status updates since it can’t get enough sunlight to recharge. (This could change as 67P gets closer to the Sun, but nobody knows for sure.)
Rosetta, meanwhile, is in perfect health and continues to transmit incredible pictures of the comet, such as this one below released a couple of days ago. The montage you see includes the zone where Philae was supposed to have touched down, but it will take higher-resolution images from the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) to get a better look.
A montage of four images of Comet 67P/Churyumov–Gerasimenko taken by the Rosetta spacecraft on Nov. 20, 2014. Credit: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0
A Soyuz rocket carries the Expedition 42/3 crew to the International Space Station from Kazakhstan on Nov. 24, 2014. On board were Anton Shkaplerov (Roscosmos), Terry Virts (NASA) and Samantha Cristoforetti (European Space Agency). Credit: NASA/Aubrey Gemignani
And now we have six people in space again — including the first-ever Italian woman to reach orbit. Samantha Cristoforetti has been delighting people worldwide with her behind-the-scenes training posts as she prepares for her “Futura” mission, which will see her spend 5.5 months on the International Space Station with her crewmates. We have the NASA video from the big day above, and some photos from the launch below.
Cristoforetti has been sharing Spotify playlists and amusing tweets with more than 131,000 Twitter followers, not to mention people on Flickr and Google Plus. Her sense of humor and eye for the unusual will make for a fun few months in orbit along with the rest of her crew, NASA’s Terry Virts and Russia’s Anton Shkaplerov.
Just had what was probably my longest shower ever. Good Russian wisdom to leave plenty of time for it on the schedule! #NoRushOnLaunchDay
On station for their arrival last night was the second half of their crew: Barry Wilmore (NASA), Elena Serova (Russia) and Alexander Samoukutyaev (Russia). And in March 2015, a big event occurs: the first one-year mission on the International Space Station will begin with the arrival of the next crew.
The launch took place at 4:01 p.m. EDT (9:01 p.m. UTC) from the Baikonur Cosmodrome in Kazakhstan aboard a Soyuz rocket.
Prior to the launch of Expedition 42 in November 2014, Samantha Cristoforetti (left, European Space Agency) speaks with a loved one through the glass at a pre-launch press conference. Credit: NASA/Aubrey GemignaniPrior to the launch of Expedition 42 in November 2014, Anton Shkaplerov (Roscosmos, center) visits with a family member (at right) through the glass at a pre-flight press conference. In the background are his crewmates, from left: Terry Virts (NASA) Samantha Cristoforetti (ESA). Credit: NASA/Aubrey Gemignani
Antares descended into hellish inferno after first stage propulsion system at base of Orbital Sciences Antares rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.com
Up close launch pad camera view as Antares descended into a hellish inferno after the first stage propulsion system at the base of Orbital Sciences’ Antares rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. The south side engine nozzle is clearly intact in this image. Credit: Ken Kremer – kenkremer.com
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NASA WALLOPS FLIGHT FACILITY, VA – All was calm, the air was crisp with hope, and the skies were clear as far as the eye could see as the clock ticked down to T MINUS Zero for the Oct. 28, 2014, blastoff of an Orbital Sciences commercial Antares rocket from NASA’s Wallops Flight Facility, VA, on a mission of critical importance bound for the International Space Station and stocked with science and life support supplies for the six humans living and working aboard.
Tragically it was not to be – as I reported live from the NASA Wallops press site on that fateful October day. The 133 foot tall rocket’s base exploded violently and unexpectedly just seconds after a beautiful evening liftoff due to the failure of one of the refurbished AJ26 first stage “Americanized” Soviet-era engines built four decades ago.
And now for the first time, I can show you precisely what the terrible incendiary view was like through exclusive, up close launch pad photos and videos from myself and a group of space journalists working together from Universe Today, AmericaSpace, and Zero-G news.
Antares descended to doom after the first stage propulsion system at the base of Orbital Sciences’ Antares rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.com
I was an eyewitness to the awful devastation suffered by the Antares/Cygnus Orb-3 mission from the press viewing site at NASA Wallops located at a distance of about 1.8 miles away from the launch complex.
Our remote cameras were placed directly adjacent to the Antares pad OA at the Mid-Atlantic Regional Spaceport (MARS) on Wallops Island, VA, and miraculously survived the rocket’s destruction as it plunged to the ground very near and just north of the seaside launch pad.
All of our team’s cameras and image cards were impounded by Orbital’s Accident Investigation Board (AIB) that was assembled quickly in the aftermath of the disaster and charged with determining the root cause of the launch failure.
The photos captured on our image cards were used as evidence and scrutinized by the investigators searching for clues as to the cause, and have only just been returned to us in the past two days. Similar NASA and Orbital Sciences photos have not been publicly released.
Collected here in Part 1 is a gallery of images from our combined journalist team of Universe Today, AmericaSpace, and Zero-G news. Part 2 will follow shortly and focus on our up close launch pad videos.
Close up view of Antares’ destruction shows the south side first stage engine intact after the north side engine at the base of Orbital Sciences’ rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014. Credit: Ken Kremer – kenkremer.comAntares descended into a hellish inferno after the first stage propulsion system at the base of Orbital Sciences’ Antares rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.com
My lead image shows Antares’ descent into a hellish inferno. And more below clearly show that the south side engine nozzle was intact after the explosion. Thus it was the north side engine that blew up. See my up close AJ26 engine photo below.
Images from my colleagues Matthew Travis, Elliot Severn, Alex Polimeni, Charles Twine, and Jeff Seibert also show exquisite views of the explosion, fireball, and wreckage from various positions around the launch pad.
Antares destruction after the first stage propulsion system at the base of Orbital Sciences’ rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014. Credit: Ken Kremer – kenkremer.com
Close up view of Antares’ destructive fall shows the south side first stage engine intact after the north side engine at the base of Orbital Sciences’ rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014. Credit: Ken Kremer – kenkremer.com
Moments after liftoff, the highly anticipated Antares launch suddenly devolved into utter catastrophe and a doomed descent into a hellish inferno of bloodcurdling terror – falling as a flaming incinerating carcass of unspeakable horror that ended in a mammoth deafening explosion as the pitiful wreckage smashed into the ground and blew back upwards as a raging fireball and hurtling debris that was visible across a wide swath of the sky.
The awful scene was seen by hordes of expectant spectators for miles around the Wallops area.
The disaster’s cause has almost certainly been traced to a turbopump failure in one of the rocket’s Soviet-era first stage engines, according to official statements from David Thompson, Orbital’s Chairman and Chief Executive Officer.
The AJ26 engines were originally manufactured some 40 years ago in the then Soviet Union as the NK-33.
They were refurbished and “Americanized” by Aerojet Rocketdyne.
“While still preliminary and subject to change, current evidence strongly suggests that one of the two AJ26 main engines that powered Antares first stage failed about 15 seconds after ignition. At this time, we believe the failure likely originated in or directly affected the turbopump machinery of this engine, but I want to stress that more analysis will be required to confirm that this finding is correct,” said Thompson.
Overall this was the 5th Antares launch using the AJ26 engines.
The 14 story Antares rocket is a two stage vehicle.
The liquid fueled first stage is filled with about 550,000 pounds (250,000 kg) of Liquid Oxygen and Refined Petroleum (LOX/RP) and powered by a pair of AJ26 engines that generate a combined 734,000 pounds (3,265kN) of sea level thrust.
The Oct. 28 launch disaster was just the latest in a string of serious problems with the AJ-26/NK-33 engines.
Earlier this year an AJ26 engine failed and exploded during pre launch acceptance testing on a test stand on May 22, 2014 at NASA’s Stennis Space Center in Mississippi.
Besides completely destroying the AJ26 engine, the explosion during engine testing also severely damaged the Stennis test stand. It has taken months of hard work to rebuild and restore the test stand and place it back into service.
Antares was carrying Orbital’s privately developed Cygnus pressurized cargo freighter loaded with nearly 5000 pounds (2200 kg) of science experiments, research instruments, crew provisions, spare parts, spacewalk and computer equipment and gear on a critical resupply mission dubbed Orb-3 bound for the International Space Station (ISS).
It was the heaviest cargo load yet lofted by a Cygnus. Some 800 pounds additional cargo was loaded on board compared to earlier flights. That was enabled by using the more powerful ATK CASTOR 30XL engine to power the second stage for the first time.
The astronauts and cosmonauts depend on a regular supply train from the ISS partners to kept it afloat and productive on a 24/7 basis.
The Orbital-3, or Orb-3, mission was to be the third of eight cargo resupply missions to the ISS through 2016 under the NASA Commercial Resupply Services (CRS) contract award valued at $1.9 Billion.
Orbital Sciences is under contract to deliver 20,000 kilograms of research experiments, crew provisions, spare parts, and hardware for the eight ISS flights.
Enjoy the photo gallery herein.
And watch for Part 2 shortly with exquisite videos, more photos, and personal reflections from our team.
Antares descended into a hellish inferno after the first stage propulsion system at the base of Orbital Sciences’ Antares rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.comAntares rocket stand erect, reflecting off the calm waters the night before the planned first night launch from NASA’s Wallops Flight Facility, VA, that ended in tragic failure on Oct. 28. Credit: Ken Kremer – kenkremer.com
Watch here for Ken’s ongoing reporting about Antares and NASA Wallops.
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
Orbital Sciences Antares rocket explodes into an aerial fireball seconds after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014 at 6:22 p.m. Credit: Ken Kremer – kenkremer.comSoviet era NK-33 engines refurbished as the AJ26 exactly like pictured here probably caused Antares’ rocket failure on Oct. 28, 2014. Orbital Sciences technicians at work on two AJ26 first stage engines at the base of an Antares rocket during exclusive visit by Ken Kremer/Universe Today at NASA Wallops. These engines powered the successful Antares liftoff on Jan. 9, 2014, at NASA Wallops, Virginia, bound for the ISS. Credit: Ken Kremer – kenkremer.comUp Close Launch Pad remote camera photographers during prelaunch setup for Orb-3 mission at NASA Wallops launch pad. Credit: Ken Kremer – kenkremer.com
The Columbus module is installed on the International Space Station in 2008. Pictured is NASA astronaut Rex Walheim. Credit: NASA
Need a part on the International Space Station? You’re going to have to wait for that. That is, wait for the next spaceship to arrive with the critical tool to make a repair, or replace something that broke. You can imagine how that slows down NASA’s desire for science on the orbiting laboratory.
Enter the first orbiting “machine shop”: a 3-D printer that was just installed in the station’s Columbus laboratory this week. If the printer works as planned, astronauts will be able to make simple things based on instructions from the ground. Over time, the agency hopes this will save time and money, and reduce the need to rely on shipments from Earth. And keep an eye out in 2015: two other 3-D printers are scheduled to join it.
As NASA aims to send astronauts to an asteroid and perhaps to Mars, the need to manufacture parts on site is critical. Sending a valve to Phobos isn’t an easy proposition. Much better that future crews will make stuff on the spot, and NASA says the space station will be a good spot to test this kind of stuff out. Adding motivation is a National Research Council report from this summer urging NASA to start 3-D printing testing as soon as possible, since the station (as of yet) is only funded by all partners through 2020. Negotiations are ongoing to extend that to 2024.
In November 2014, NASA astronaut Butch Wilmore installed a 3-D printer made by Made in Space in the Columbus laboratory’s Microgravity Science Glovebox on the International Space Station. Credit: NASA TV
“Additive manufacturing with 3-D printers will allow space crews to be less reliant on supply missions from Earth and lead to sustainable, self-reliant exploration missions where resupply is difficult and costly,” stated Jason Crusan, director of NASA’s advanced explorations systems division at NASA headquarters in Washington. “The space station provides the optimal place to perfect this technology in microgravity.”
But don’t get too excited yet; astronauts aren’t going to make screwdrivers right away. The first step will be calibrating the printer. Then, the first files (mainly test coupons) will be printed and sent back to Earth to make sure they meet up to standards compared to identical samples printed on the ground with the same printer.
Made In Space Inc. manufactured this printer (which arrived on station in September) with the aim of sending up a more advanced version in 2015. In a statement, the company said it is “gratified” that the printer is ready to go in space. Any science collected on it will inform the design of the new printer, “which will enable a fast and cost-effective way for people to get hardware to space,” the company added.
And guess what: there is yet another printer that will be launched to the space station next year. Called the POP3D Portable On-Board Printer, the European Space Agency promises that the tiny machine — less than half the diameter of a basketball — will be able to print a plastic part in about half an hour.
The prime contractor for this printer is Italian company Altran. POP3D will reach the station in the first half of next year, ideally while Italy’s Samantha Cristoforetti is still doing her Futura mission in space (which starts this Sunday, if the launch schedule holds.)
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
Iconic Kennedy Space Center Countdown Clock seen here retires
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
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In another sign of dramatically changing times since the end of NASA’s Space Shuttle program, the world famous Countdown Clock that ticked down to numerous blastoffs at the Kennedy Space Center Press Site and was ever present to billions of television viewers worldwide, has been retired.
Years of poor weather and decades of unforgiving time have visibly taken their toll on the iconic Countdown Clock beloved by space enthusiasts across the globe – as I have personally witnessed over years of reporting on launches from the KSC Press Site.
It was designed in the 1960s and has been counting down launches both manned and unmanned since the Apollo 12 moon landing mission in November 1969. And it continued through the final shuttle mission liftoff in July 2011 and a variety of unmanned NASA launches since then.
The countdown clock’s last use came just two months ago in September 2014 during the SpaceX CRS-4 launch to the ISS, which I attended along with the STS-135 launch.
The clock is located just a short walk away from another iconic NASA symbol – the Vehicle Assembly Building (VAB) – which assembled the Apollo/Saturn and Space Shuttle stacks for which it ticked down to blastoff. See photo below.
A new clock should be in place for NASA’s momentous upcoming launch of the Orion crew capsule on its inaugural unmanned test flight on Dec. 4, 2014.
Space Shuttle Endeavour blasts off on her 25th and final mission from Pad 39 A on May 16, 2011 at 8:56 a.m. View from the world famous countdown clock at T Plus 5 Seconds. Credit: Ken Kremer – kenkremer.com
Because of its age, it has become harder to replace broken pieces.
“Maintaining the clock was becoming problematic,” NASA Press spokesman Allard Beutel told Universe Today.
It displays only time in big bold digits. But of course in this new modern digital era it will be replaced by one with a modern multimedia display, similar to the screens seen at sporting venues.
“The new clock will not only be a timepiece, but be more versatile with what we can show on the digital display,” Beutel told me.
The countdown clock is a must see for journalists, dignitaries and assorted visitors alike. Absolutely everyone, and I mean everyone !! – wants a selfie or group shot with it in some amusing or charming way to remember good times throughout the ages.
And of course, nothing beats including the countdown clock and the adjacent US flag in launch pictures in some dramatic way.
Indeed the clock and flag are officially called “The Press Site: Clock and Flag Pole” and are were listed in the National Register of Historic Places on Jan. 21, 2000.
The clock was officially powered down for the last time at 3:45 p.m. EDT on Nov. 19, 2014.
Famous KSC Press Site Countdown Clock and US Flag with VAB during SpaceX CRS-4 launch in September 2014. Credit: Ken Kremer – kenkremer.com
“The countdown clock at Kennedy’s Press Site is considered one of the most-watched timepieces in the world and may only be second in popularity to Big Ben’s Great Clock in London, England. It also has been the backdrop for a few Hollywood movies,” noted a NASA press release announcing the impending shutdown of the iconic clock.
“It is so absolutely unique — the one and only — built for the world to watch the countdown and launch,” said Timothy M. Wright, IMCS Timing, Countdown and Photo Services. “From a historical aspect, it has been very faithful to serve its mission requirements.”
The famous landmark stands nearly 6 feet (70 inches) high, 26 feet (315 inches) wide is 3 feet deep and sits on a triangular concrete and aluminum base.
Each numerical digit (six in all) is about 4 feet high and 2 feet wide. Each digit uses 56 40-watt light bulbs, the same ones found at the local hardware store. There are 349 total light bulbs in the clock, including the +/- sign (nine) and pair of colons (four), according to a NASA statement.
The new clock will be about the same size.
Fortunately for space fans, there is some good news!
The Countdown Clock will be moved to the nearby Kennedy Space Center Visitor Complex (KSCVC) and placed on permanent display for public viewing.
Details soon!
Space Shuttle Discovery awaits blast off on her final mission from Pad 39 A on the STS-133 mission, its 39th and final flight to space on February 24, 2011. Prelaunch twilight view from the countdown clock at the KSC Press Site. Credit: Ken Kremer – kenkremer.com
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
The Rosetta spacecraft takes a selfie Oct. 7 with its target, 67P/Churyumov–Gerasimenko, from an altitude of about 9.9 miles (16 kilometers). Credit: ESA/Rosetta/Philae/CIVA
With the Philae mission down on the comet and preliminary science results coming from its brief science surge on the surface, little has been said about the delivery vehicle. But while Philae is in hibernation, the Rosetta spacecraft remains quietly in orbit around Comet 67P/Churyumov–Gerasimenko for what will prove to be a dramatic 2015.
Should the orbiter remain healthy, it will be the first to be a “comet escort” — to watch a comet changing from up close as the celestial body draws closer to the Sun. And to stay out of the debris field, Rosetta will have some fancy footwork to perform in the next few months, says the European Space Agency (ESA).
“Burns” with the comet are planned on Saturday (Nov. 22) and Wednesday (Nov. 26) to bring it up about 30 kilometers (19 miles) above, and then it will scoot down closer to about 20 kilometers (12.5 miles) on Dec. 3. Rosetta will remain in this orbit for a while to look at the comet’s nucleus, as well as to measure plasma, dust and gas that is expected to increase as the comet gets closer to the Sun.
Rosetta will stay as close to 67P as possible, but if activity heats up to an unacceptable risk, it will jump to a “high-activity” trajectory that will keep it away from the worst of the debris. And it’s also going to keep an ear out for Philae, just in case more sunlight on the comet ends up recharging the hibernating lander’s battery. “Early next year, Rosetta will be switched into a mode that allows it to listen periodically for beacon signals from the surface.,” ESA wrote.
There has been some discussion about the magnitude of Philae’s success given that it did land on the comet as planned, but the harpoons (which had travelled a decade in space at that point) did not fire on to the surface as planned. This meant that the lander drifted for about two hours before settling far from its prime landing spot, mostly outside of the sunlight it needs to recharge its batteries.
The Mars Society prototype habitat in Utah conducts studies on what it would be like to live on Mars.
Credit: Mars Society MRDS
If you wanna get humans to Mars, there are so many technical hurdles in the way that it will take a lot of hard work. How to help people survive for months on a hostile surface, especially one that is bathed on radiation? And how will we keep those people safe on the long journey there and back?
NASA is greatly concerned about the radiation risk, and is asking the public for help in a new challenge as the agency measures radiation with the forthcoming uncrewed Orion test flight in December. There’s $12,000 up for grabs across at least a few awards, providing you get your ideas into the agency by Dec. 12.
“One of the major human health issues facing future space travelers venturing beyond low-Earth orbit is the hazardous effects of galactic cosmic rays (GCRs),” NASA wrote in a press release.
“Exposure to GCRs, immensely high-energy radiation that mainly originates outside the solar system, now limits mission duration to about 150 days while a mission to Mars would take approximately 500 days. These charged particles permeate the universe, and exposure to them is inevitable during space exploration.”
Orion in orbit in this artists concept. Credit: NASA
Here’s an interesting twist, too — more data will come through the Orion test flight as the next-generation spacecraft aims for a flight 3,600 miles (5,800 kilometers) above Earth’s surface. That’s so high that the vehicle will go inside a high-radiation environment called the Van Allen Belts, which only the Apollo astronauts passed through in the 1960s and 1970s en route to the Moon.
While a flight to Mars will also just graze this area briefly, scientists say the high-radiation environment will give them a sense of how Orion (and future spacecraft) perform in this kind of a zone. So the spacecraft will carry sensors on board to measure overall radiation levels as well as “hot spots” within the vehicle.
You can find out more information about the challenge, and participation details, at this link.
Our last panorama from Philae? This image was taken with the CIVA camera; at center Philae has been added to show its orientation on the surface. Credit: ESA
And we have touchdown! This is what the feet of the Philae lander experienced as the spacecraft touched down on its cometary destination last week. You can hear the brief sound from the Cometary Acoustic Surface Sounding Experiment (CASSE) above. What’s even cooler is the scientific data that short noise reveals.
CASSE is embedded in the three legs of Philae and recorded the first of three landings for the spacecraft, which bounced for about two hours before coming to rest somewhere on Comet 67P/Churyumov–Gerasimenko (where is still being determined).
About that first touchdown: “The Philae lander came into contact with a soft layer several centimetres thick. Then, just milliseconds later, the feet encountered a hard, perhaps icy layer on 67P/Churyumov-Gerasimenko,” stated German Space Agency (DLR) researcher Klaus Seidensticker. He is the lead for the Surface Electric Sounding and Acoustic Monitoring Experiment (SESAME), which includes CASSE.
CASSE also recorded information from the lander’s feet from Philae’s final resting spot, and transmitted information about the MUlti PUrpose Sensor (MUPUS) as the latter instrument drilled into the surface. Other instruments on SESAME found no dust particles nearby the lander (which scientists say means the landing site is quiescent) and also sensed water ice beneath the lander.
Philae is now in hibernation as its final resting spot does not include a lot of sunlight to recharge the solar panels, but the researchers are hoping that more energy might be available as 67P draws closer to the Sun in 2015. The orbiting Rosetta spacecraft is continuing to collect data on the comet.
Artist's conception of Lunar Mission One's robotic lander touching down on the surface. Credit: Lunar Missions Ltd.
Just hours after announcing that it plans to put a robotic lander on the moon in the next decade, the British-led group Lunar Mission One is already a sixth of a way to its £600,000 (US$940,000) initial crowdfunding goal.
The money is intended to jumpstart the project and move it into more concrete stages after seven years of quiet, weekend work, the group said on its Kickstarter page.
“We’ve reached the limit of what we can do part-time. The next three years are going to be hard, full-time work to set the project up. We need to confirm and agree the lunar science and develop the instrument package,” the page read.
“We need to plan and research the online public archive. We need to get commercial partners on board to design and develop the lunar landing module and the drilling mechanism. We need to pilot the education programme. We need to prepare the sales and marketing campaign for our memory boxes. And we need to do all of this globally.”
Among the rewards is something called a “digital memory box”, where you can upload your favorite sounds to be placed on the spacecraft. The group also plans to offer a little bit of physical space to put a strand of your hair along with the small digital archive.
And what does the group want to do there? Drill. It would place the lander at the Moon’s south pole and push down at least 20 meters (65 feet), potentially as far as 100 meters (328 feet), to learn more about the Moon’s history.
Artist’s conception of a moon drill that could potentially be used by Lunar Mission One’s lunar lander. Credit: Lunar Missions Ltd.
“By doing this, we will access lunar rock dating back up to 4.5 billion years to discover the geological composition of the Moon, the ancient relationship it shares with our planet and the effects of asteroid bombardment,” the group wrote. “Ultimately, the project will improve scientific understanding of the early Solar System, the formation of our planet and the Moon, and the conditions that initiated life on Earth.”
Private ideas for bold missions is something we’ve heard about repeatedly in the last few years, with initiatives ranging from the Mars One mission to send people on a one-way mission to the Red Planet, to the potential asteroid-mining ventures Planetary Resources and Deep Space Initiatives. As with these other ventures, the nitty gritty in terms of costs, systems and mission plans is still being worked out. This coupled with the long timelines to get these ventures off the ground means that success is not necessarily a guarantee.
Lunar Mission One, however, does have an experienced space hand helping it out: RAL Space, who the Kickstarter campaign page says has helped out with 200 missions. That’s including the high-profile Philae lander that just landed on Comet 67P/Churyumov–Gerasimenko last week and did a brief surge of science before going into hibernation.
