Domain: nasa.gov
Stories and comments across the archive that link to nasa.gov.
Stories · 2,550
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Animated View from the Mars Rover
An anonymous reader writes "The Mars Spirit rover is within sight of the summit of Husband Hill, and it's looking out onto a vast plain where it caught sight of dust devils that are presented in a new animation of stills. Meanwhile, on NASA's site is a cool new panorama of 'Rub al Khali' taken by Opportunity." The science of the dust devils was covered previously on Slashdot. -
The Mathematics of a Trip to Mars?
hakonhaugnes wonders: "Since trips to Mars seems commonplace (NASA has sent one every 26 months), I thought it made sense to try to understand how the interplanetary trajectory is calculated. NASA's page is deploringly void of intricate details. I found this excellent page, but it still left me feeling that I was missing something. Surely the calculus must go beyond two bodies (mars/earth)? (It seems there are commercial MATLAB scripts available but at $150 it went beyond the defensible to satisfy my curiosity). Are there any curious Slashdot readers with the usual great insight into how to calculate a trip to Mars?" -
NASA Supporting Nanotech Development
It doesn't come easy writes "In laboratories around the country, NASA is supporting the burgeoning science of nanotechnology. The basic idea is to learn to deal with matter at the atomic scale -- to be able to control individual atoms and molecules well enough to design molecule-size machines, advanced electronics and "smart" materials." -
Mars Orbiter Launch Delayed
Mictian writes "NASA's newest Mars probe, Mars Reconnaissance Orbiter (MRO), was originally scheduled to be launched from Kennedy Space Center Wednesday morning atop an Atlas 5 rocket. However a potential problem with the Atlas' Redundant Rate Gyro Units (RRGUs), that are part of the vehicle's flight control system, detected at Lockheed Martin's factory has caused the engineers to make sure that the two RRGUs in MRO's rocket are working, thus delaying the launch at least until Thursday morning. There is a 1.5 hour launch window daily until the end of the month." -
Podcasting from Space
An anonymous reader writes "Podcasting has officially made it into orbit! According to a Geekzone article, Mission Specialist Steve Robinson delivered a short monologue off the southeast tip of Indonesia in which he described the morale of the Discovery crew at the end of their well-publicized mission: 'It's been a fantastic mission up here, absolutely amazing. Some of the hardest work that any of us have ever done. We haven't had a whole lot of sleep, and we've been extremely busy and really happy.' A transcript of the podcast as well as the MP3 itself can be found at Nasa's site." -
Shuttle Discovery Lands Safely
Tuxedo Jack writes "CNN and NASA report that the space shuttle Discovery has landed safely at Edwards Air Force Base in California. Concerns for its safe return were raised when spacewalks were necessary to repair the vehicle when external components were damaged; however, the shuttle landed safely with Commander Eileen Collins at the control yoke." -
Reducing Plant Stress Leads to Martian Farms
Saint Aardvark the Carpeted writes "NASA is looking for ways to get plants to grow on Mars -- and surprisingly, reducing their stress is a good first step. By splicing genes from Earth-bound extremophiles into seeds whose descendants are destined for the red planet, scientists hope to breed plants that can handle the wide range of temperatures (pdf) that will be found on Mars." -
Discovery's Dangling Gapfiller Removed by Hand
Cyclotron_Boy writes "According to the New Scientist and NASA TV, Discovery's gap-fillers were removed successfully by hand by astronaut Steve Robinson earlier today during the eva. They didn't even have to use the forceps or the makeshift hacksaw-blade tool." -
Planet X Larger Than Pluto?
nova_planitia writes "The Minor Planet mailing list is buzzing with the discovery by an amateur astronomer of a 17th magnitude object 51 astronomical units from the Sun, tentatively designated 2003 EL61. For those not versed in astronomical lingo, this is an object several times brighter than Pluto even though it is 25% farther out from the Sun (the orbit vizualised by JPL). This means that barring a strangely reflective surface, this object is larger than Pluto, possibly Mars-sized! The debate whether Pluto is a planet is likely to get rekindled by this discovery." -
Planet X Larger Than Pluto?
nova_planitia writes "The Minor Planet mailing list is buzzing with the discovery by an amateur astronomer of a 17th magnitude object 51 astronomical units from the Sun, tentatively designated 2003 EL61. For those not versed in astronomical lingo, this is an object several times brighter than Pluto even though it is 25% farther out from the Sun (the orbit vizualised by JPL). This means that barring a strangely reflective surface, this object is larger than Pluto, possibly Mars-sized! The debate whether Pluto is a planet is likely to get rekindled by this discovery." -
Eerie Sounds from Saturn
Mick Ohrberg writes "Scientists at NASA have now heard proof (called 'Saturn kilometric radiation') that Saturn has a phenomenon similar to the earths' Northern Lights (aurora borealis). Talking about the eerie sounding noise, Dr. Bill Kurth with the University of Iowa, says "We believe that the changing frequencies are related to tiny radio sources moving up and down along Saturn's magnetic field lines." It couldn't sound any spookier if they added a Theremin." -
Exploding Water Balloons In Zero G
ArchAngel21x writes "Experimenters burst water balloons in the low-gravity environment produced aboard a NASA DC 9 aircraft. There are 3 videos available in QuickTime or MPEG." From the site: "The tests were conducted in part to develop the ability to rapidly deploy large liquid drops by rupturing an enclosing membrane. As can be seen from the experiment footage, the initial rupture process is nearly ideal, but the finite size of the balloon material eventually ejects a spray from the drop surface. Then, when the balloon material leaves the drop entirely, it causes a large deformation of the drop (blob) which oscillates throughout the remainder of the test. Calculations suggest that such oscillations will continue for hours before the drop eventually becomes spherical." -
Exploding Water Balloons In Zero G
ArchAngel21x writes "Experimenters burst water balloons in the low-gravity environment produced aboard a NASA DC 9 aircraft. There are 3 videos available in QuickTime or MPEG." From the site: "The tests were conducted in part to develop the ability to rapidly deploy large liquid drops by rupturing an enclosing membrane. As can be seen from the experiment footage, the initial rupture process is nearly ideal, but the finite size of the balloon material eventually ejects a spray from the drop surface. Then, when the balloon material leaves the drop entirely, it causes a large deformation of the drop (blob) which oscillates throughout the remainder of the test. Calculations suggest that such oscillations will continue for hours before the drop eventually becomes spherical." -
NASA Policy Includes Mars, Moon Missions
TopSpin writes "The US House of Representatives passed a bill establishing NASA policy for the next two years. The bill is seen as an endorsement of President Bush's Vision for Space Exploration, including returning man to the Moon and eventually Mars. The House struggled with compromising other NASA initiatives against new manned exploration, eventually deciding to expand the budget enough to accommodate both prerogatives. The bill also endorses a servicing and repair mission to the Hubble Space Telescope." -
Space Shuttle Discovery to Launch July 26
thhamm writes "According to Space.com: 'NASA will restart the countdown for the space shuttle Discovery Saturday, with plans to launch the orbiter spaceward on July 26 after more than a week of work to pin down a fuel sensor glitch, mission managers said late Wednesday'. In the meantime, technicians will work with grounding wiring associated with the liquid hydrogen engine cutoff sensor system, as well as adjust the configuration of components within Discovery's point sensor box." -
NASA Reveals Dust Devil Data from Mars
saskboy writes "NASA reports that Martian dust devils could be much more destructive than previously considered. You may remember this past April when it was revealed that whirlwinds actually helped the current rovers by cleaning accumulated dust from their solar cells which increased their energy collection efficiency. But after studying the mini-storms more, they realize that the dust and sand particles could cause static electricity discharges, also known as lightning. The high speed grains of sand blowing around at about 30 meters/second (70 miles per hour) are nothing to blink at either, since they can damage astronauts or equipment on the Martian surface. The height of a Martian dust devil can reach 10km (6 miles), which means it's more like the size of a terran tornado." -
NASA Scrubs Launch Due to Faulty Fuel-Tank Sensor
VUSE g-EE-k writes "NASA has scrubbed Wednesday's launch of Discovery due to a faulty fuel-tank sensor in the external fuel tank. They are going to begin the troubleshooting process. They have not released details as to how long this delay will last. The crew have begun to get off the shuttle. For more information, see the NASA TV site. Drudge Report has some initial coverage of the scrub." Reader adefa adds a link to NASA's Space Shuttle launch page with more info. -
NASA Scrubs Launch Due to Faulty Fuel-Tank Sensor
VUSE g-EE-k writes "NASA has scrubbed Wednesday's launch of Discovery due to a faulty fuel-tank sensor in the external fuel tank. They are going to begin the troubleshooting process. They have not released details as to how long this delay will last. The crew have begun to get off the shuttle. For more information, see the NASA TV site. Drudge Report has some initial coverage of the scrub." Reader adefa adds a link to NASA's Space Shuttle launch page with more info. -
T-43 Hours and Counting
An anonymous reader submits "As seen on NASA TV, for the first time in over two years, the countdown clock has started at 6:00 PM EDT for the Wednesday 3:51 PM EDT launch of Space Shuttle Discovery on the first of the return to flight test flights. The launch is not for certain due to weather issues associated with hurricane Dennis. Currently it is estimated for a 70% chance of launch on Wednesday, with the chances lowering later in the week. If you are confused on how T-43 hours equals almost 3 days, perhaps you should read Countdown 101." -
T-43 Hours and Counting
An anonymous reader submits "As seen on NASA TV, for the first time in over two years, the countdown clock has started at 6:00 PM EDT for the Wednesday 3:51 PM EDT launch of Space Shuttle Discovery on the first of the return to flight test flights. The launch is not for certain due to weather issues associated with hurricane Dennis. Currently it is estimated for a 70% chance of launch on Wednesday, with the chances lowering later in the week. If you are confused on how T-43 hours equals almost 3 days, perhaps you should read Countdown 101." -
T-43 Hours and Counting
An anonymous reader submits "As seen on NASA TV, for the first time in over two years, the countdown clock has started at 6:00 PM EDT for the Wednesday 3:51 PM EDT launch of Space Shuttle Discovery on the first of the return to flight test flights. The launch is not for certain due to weather issues associated with hurricane Dennis. Currently it is estimated for a 70% chance of launch on Wednesday, with the chances lowering later in the week. If you are confused on how T-43 hours equals almost 3 days, perhaps you should read Countdown 101." -
T-43 Hours and Counting
An anonymous reader submits "As seen on NASA TV, for the first time in over two years, the countdown clock has started at 6:00 PM EDT for the Wednesday 3:51 PM EDT launch of Space Shuttle Discovery on the first of the return to flight test flights. The launch is not for certain due to weather issues associated with hurricane Dennis. Currently it is estimated for a 70% chance of launch on Wednesday, with the chances lowering later in the week. If you are confused on how T-43 hours equals almost 3 days, perhaps you should read Countdown 101." -
T-43 Hours and Counting
An anonymous reader submits "As seen on NASA TV, for the first time in over two years, the countdown clock has started at 6:00 PM EDT for the Wednesday 3:51 PM EDT launch of Space Shuttle Discovery on the first of the return to flight test flights. The launch is not for certain due to weather issues associated with hurricane Dennis. Currently it is estimated for a 70% chance of launch on Wednesday, with the chances lowering later in the week. If you are confused on how T-43 hours equals almost 3 days, perhaps you should read Countdown 101." -
Commercial Use of Shuttle Landing Facilities Planned
VeganBob writes "There may be future non-NASA uses of the Shuttle Landing Facilities. At 15,000 feet long and 300 feet wide, the landing strip is larger than those at most commercial airports. From the article: 'NASA today issued a formal request for expressions of interest by non-NASA organizations, including commercial space companies, for use of the Shuttle Landing Facility (SLF) at the Kennedy Space Center (KSC), Fla. The announcement is the first step in considering how and when NASA can expand access to available capacity at the SLF by government, commercial, and academic organizations.' SPACE.com also covers this announcement." -
Commercial Use of Shuttle Landing Facilities Planned
VeganBob writes "There may be future non-NASA uses of the Shuttle Landing Facilities. At 15,000 feet long and 300 feet wide, the landing strip is larger than those at most commercial airports. From the article: 'NASA today issued a formal request for expressions of interest by non-NASA organizations, including commercial space companies, for use of the Shuttle Landing Facility (SLF) at the Kennedy Space Center (KSC), Fla. The announcement is the first step in considering how and when NASA can expand access to available capacity at the SLF by government, commercial, and academic organizations.' SPACE.com also covers this announcement." -
Cometary Fireworks Go Off Without Hitch
PingXao writes "The JPL Deep Impact mission has successfully slammed a sattelite into Tempel 1 at 23,000 mph. (37,000 kph). The autonomous navigation system was primed for up to 3 course corrections in the final 2 hours of flight but only had to execute two of them. The second was so small - expending less than a pound of propellant - that impact would have occurred without it. Initially thought to be shaped like a pickle, it came to resemble more of a banana shape as comet Tempel I drew closer. Impact was estimated to have released 19 Gigajoules of energy, or the equivalent of 4.5 tons of TNT." -
Cometary Fireworks Go Off Without Hitch
PingXao writes "The JPL Deep Impact mission has successfully slammed a sattelite into Tempel 1 at 23,000 mph. (37,000 kph). The autonomous navigation system was primed for up to 3 course corrections in the final 2 hours of flight but only had to execute two of them. The second was so small - expending less than a pound of propellant - that impact would have occurred without it. Initially thought to be shaped like a pickle, it came to resemble more of a banana shape as comet Tempel I drew closer. Impact was estimated to have released 19 Gigajoules of energy, or the equivalent of 4.5 tons of TNT." -
Cometary Fireworks Go Off Without Hitch
PingXao writes "The JPL Deep Impact mission has successfully slammed a sattelite into Tempel 1 at 23,000 mph. (37,000 kph). The autonomous navigation system was primed for up to 3 course corrections in the final 2 hours of flight but only had to execute two of them. The second was so small - expending less than a pound of propellant - that impact would have occurred without it. Initially thought to be shaped like a pickle, it came to resemble more of a banana shape as comet Tempel I drew closer. Impact was estimated to have released 19 Gigajoules of energy, or the equivalent of 4.5 tons of TNT." -
Deep Impact on Comet Theory
AlexGP writes "Proponents of the Electric Universe theory have gone out on a limb ahead of Deep Impact. They're predicting it will show comets are just rocks and not dirty snowballs. Controversially they assert comets are highly negatively-charged asteroids on eccentric orbits. As they travel further into the Sun's radial positive electric field, they discharge into space, expelling material at supersonic speed." -
Deep Impact on Comet Theory
AlexGP writes "Proponents of the Electric Universe theory have gone out on a limb ahead of Deep Impact. They're predicting it will show comets are just rocks and not dirty snowballs. Controversially they assert comets are highly negatively-charged asteroids on eccentric orbits. As they travel further into the Sun's radial positive electric field, they discharge into space, expelling material at supersonic speed." -
Cassini's Got Pictures And Data
MythMoth writes "To celebrate the anniversary of the Cassini-Huygens probe's orbital insertion, NASA's JPL has a set of fifteen amazing photos from the past year. Meanwhile, the BBC reports that some of the latest science data from the mission reveals that Saturn's ring system has its own (thin) O2 atmosphere, and that the planet's rotation seems to be slowing!" -
Space Shuttle One Step Closer To July Launch
Mictian writes "The risk to the space shuttle from launch debris, mainly ice falling off the external tank, has been reduced and is now low enough to be considered 'an acceptable risk,' NASA's shuttle engineers and managers concluded in the debris verification meeting held Saturday at Kennedy Space Center. The board recommended a green light for a July launch, which Shuttle Program Manager Bill Parsons accepted. The independent Return to Flight Task Group will hold its final meeting on June 27th to determine if the remaining 3 (out of 15) hurdles to launch are cleared, as mentioned in previous Slashdot coverage." -
Deep Impact Comet-Smashing Video
DynaSoar writes "Dan Maas is the animation expert who produced NASA's Mars Rover animation which was subsequently used in the PBS Nova episodes 'Mars, Dead or Alive' and 'Welcome to Mars,' the majority of which was done while he was a Cornell student on a summer internship at NASA. His most recent release is NASA's best 'artist's conception' of the Tempel 1 Deep Impact mission. Nobody knows what will happen when 820 pounds of metal slams into the comet with 5 kilotons of force, but whatever happens, Maas's digital precreation is probably way more entertaining than NASA's imagery is likely to be. Two versions of the Deep Impact QuickTime video are available. A couple notes of interest: the original Mars video was produced as a music video, using Lenny Kravitz and Holst as soundtracks. This is available only to K-12 educators. Also, in the interview in the first link, when asked for an inspirational quote, he quotes John Carmack." -
Glass In Spaaaaace
AnKsT wrote to mention an article on NASA's site about creating and manipulating glass in space. From the article: "In microgravity...you don't need a container. In Day's initial experiments, the melt--a molten droplet about 1/4 inch in diameter--was held in place inside a hot furnace simply by the pressure of sound waves emitted by an acoustic levitator. With that acoustic levitator, explains Day, 'we could melt and cool and melt and cool a molten droplet without letting it touch anything.' As Day had hoped, containerless processing produced a better glass. To his surprise, though, the glass was of even higher quality than theory had predicted." -
BLAST High Altitude Telescope Launched
Xandu writes "BLAST, the Balloon-borne Large Aperture Sub-millimeter Telescope, was launched on the 11th at 11:09 UTC from Esrange in northern Sweden, and is currently floating over Greenland. BLAST is a 2700kg telescope with a 2 meter primary mirror that hangs from a 1.1 million m^3 balloon floating at an altitude of 38km that will study the star formation history of the universe. It will float west at nearly constant latitude for about 5 days before the flight is terminated over northwest Canada or northern Alaska. Real time position and flight track is available from the NSBF. Two of the graduate students working on the project have photo blogs of the entire (8 week) prep period, including several launch photos. The press has more traditional coverage as well. And if that isn't geeky enough to make it on Slashdot, the flight computers run Slack." -
BLAST High Altitude Telescope Launched
Xandu writes "BLAST, the Balloon-borne Large Aperture Sub-millimeter Telescope, was launched on the 11th at 11:09 UTC from Esrange in northern Sweden, and is currently floating over Greenland. BLAST is a 2700kg telescope with a 2 meter primary mirror that hangs from a 1.1 million m^3 balloon floating at an altitude of 38km that will study the star formation history of the universe. It will float west at nearly constant latitude for about 5 days before the flight is terminated over northwest Canada or northern Alaska. Real time position and flight track is available from the NSBF. Two of the graduate students working on the project have photo blogs of the entire (8 week) prep period, including several launch photos. The press has more traditional coverage as well. And if that isn't geeky enough to make it on Slashdot, the flight computers run Slack." -
Simulating Supernovae with Graphics Cards
astroboy writes "As graphics cards get more powerful, Los Alamos and Utah scientists have developed a package, Scout, to use those usually-languishing FLOPs to do simulations, and to visualize of them on the on the run. As an example, they have released movie of part of the evolution of a core-collapse supernovae" -
NASA Notices New, Nasty Solar Storm Type
saskboy writes "Solar Storms generally aren't this bad, but in January unique conditions led to a "proton superhighway" that bombarded earth with fast moving protons that could have harmed astronauts caught without a radiation shield. "Scant minutes after the January 20th [2005] flare, a swarm of high-speed protons surrounded Earth and the Moon. Thirty minutes later, the most intense proton storm in decades was underway." Listen to the story here. Archives from the January storms are also available from SpaceWeather.com" -
NASA Notices New, Nasty Solar Storm Type
saskboy writes "Solar Storms generally aren't this bad, but in January unique conditions led to a "proton superhighway" that bombarded earth with fast moving protons that could have harmed astronauts caught without a radiation shield. "Scant minutes after the January 20th [2005] flare, a swarm of high-speed protons surrounded Earth and the Moon. Thirty minutes later, the most intense proton storm in decades was underway." Listen to the story here. Archives from the January storms are also available from SpaceWeather.com" -
Possible Cryovolcano Discovered on Titan
Rei writes "NASA's Jet Propulsion Laboratory is reporting that the Cassini spacecraft has observed what appears to be a cryovolcano on Saturn's moon Titan. Given the absense of a global methane sea on Titan, the snail-shaped structure with what appears to be a caldera on top could explain how Titan's methane stays replenished. It could further explain the dry drainage channels discovered by the Huygens lander as being formed by heavy methane rainfall after eruptions." -
Mars Rover Breaks Free
QuantumFTL writes "According to an MSNBC story Opportunity, the same rover that scored an interplanetary hole-in-one, has broken free of an interplanetary sand trap. The MER science operations mailing list was abuzz this morning with the news, as soon as the first rear hazcam image indicating success came down. Engineers were praised for working long nights and weekends to make this extrication possible. Good job, NASA!" -
NASA Discovers Space Spies From the 60's
Saeed al-Sahaf writes "In a room forgotten for more than thirty years at NASA's Cape Canaveral Air Force Station in Florida, NASA recently found suits for space spies. Originally thought to be Gemini suits, the manufacturer determined that they were suits from a short-lived Cold War-era military program to put a manned reconnaissance station in space. Begun in 1964, the Manned Orbiting Laboratory program was an Air Force initiative that would have sent Air Force astronauts to a space station in a Gemini capsule. After spending a few weeks in orbit, the crew would undock and return to Earth. An interesting blast from the past." -
Mars Phoenix Lander Given The Go
stlhawkeye writes "The BBC is running an article which indicates that NASA has green-lit Phoenix, the next Mars mission. NASA also has some details on the mission, which is centered around locating water on the red planet. Originally planned as part of the 2001 Mars Surveyor mission, the lander would launch in 2007. Among the more interesting plans for the mission is a new type of camera to photograph the landing site just before touchdown, and a robotic arm to claw through three feet of soil. The lander would touchdown near the polar ice cap. The mission is characterized as the first 'scout' mission for possible manned landing in the future." -
Titan Moon's Bright Hot Spot
An anonymous reader writes "Saturn's largest moon, Titan, has been the target of great interest because of its unusual pre-biotic chemistry and thick atmosphere. The Colorado-Boulder Space Science Institute announced a new mystery today involving a persistently bright spot, perhaps one of four possibilities. The spot could be a surface coloration, a mountain range, a cloud, or a hot spot." -
Voyager 1 Crosses The Termination Shock
SubstormGuy writes "In a scientific session at the AGU meeting in New Orleans this morning, Dr. Ed Stone presented clear evidence that Voyager 1 crossed the termination shock last December. The scientists in the room applauded when the announcement was made." -
New NASA Budget Woes
Abcd1234 writes "The last few months have seen NASA the focal point of high drama, the most obvious example being the controversy surrounding the next Hubble Space Telescope servicing mission. Well, the drama continues with NASA reporting to a Senate subcommitee that it currently faces a $2 billion budget shortfall which could result in the downsizing, delaying, or outright cancellation of a number of NASA missions, including the Space Interferometry Mission and Terrestrial Planet Finder, which may be delayed, and the James Webb Space Telescope, often cited as the successor to the HST, which faces potential cancellation. Among the reasons for the shortfall: cost overruns in a number of missions, including the shuttle return-to-flight program, resumption of the Hubble servicing mission, and mandated congressional expenditures (a.k.a 'pork')." -
New NASA Budget Woes
Abcd1234 writes "The last few months have seen NASA the focal point of high drama, the most obvious example being the controversy surrounding the next Hubble Space Telescope servicing mission. Well, the drama continues with NASA reporting to a Senate subcommitee that it currently faces a $2 billion budget shortfall which could result in the downsizing, delaying, or outright cancellation of a number of NASA missions, including the Space Interferometry Mission and Terrestrial Planet Finder, which may be delayed, and the James Webb Space Telescope, often cited as the successor to the HST, which faces potential cancellation. Among the reasons for the shortfall: cost overruns in a number of missions, including the shuttle return-to-flight program, resumption of the Hubble servicing mission, and mandated congressional expenditures (a.k.a 'pork')." -
New NASA Budget Woes
Abcd1234 writes "The last few months have seen NASA the focal point of high drama, the most obvious example being the controversy surrounding the next Hubble Space Telescope servicing mission. Well, the drama continues with NASA reporting to a Senate subcommitee that it currently faces a $2 billion budget shortfall which could result in the downsizing, delaying, or outright cancellation of a number of NASA missions, including the Space Interferometry Mission and Terrestrial Planet Finder, which may be delayed, and the James Webb Space Telescope, often cited as the successor to the HST, which faces potential cancellation. Among the reasons for the shortfall: cost overruns in a number of missions, including the shuttle return-to-flight program, resumption of the Hubble servicing mission, and mandated congressional expenditures (a.k.a 'pork')." -
NASA Offers Reward for Extracting O2 from Moondust
DoubleWhopper writes "Break out the duct tape and paper clips. NASA has announced a $250,000 reward to the "first team of scientists to invent a way to extract breathable oxygen from lunar soil". Wired reports, "Inventors who attempt the Moon Regolith Oxygen (or MoonROx) challenge will have just eight hours to extract at least 11 pounds of breathable oxygen from a simulated form of lunar soil."" -
Mars Rover Opportunity Working Free
VernonNemitz writes "As previously reported, the Mars rover Opportunity ran into more sand (or finer material) than it was designed to handle. While initial attempts to escape may not have accomplished much, the most recent efforts seem to imply that the plucky machine is going to succeed at getting away."