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Domain: nasa.gov
Stories and comments across the archive that link to nasa.gov.
Stories · 2,550
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Intelligent Satellite Notices Volcanic Activity
Dik Zak points us to this NASA page about a new generation of intelligent Earth observation satellites. From the article: "The Indonesian volcano Talang on the island of Sumatra had been dormant for centuries when, in April 2005, it suddenly rumbled to life. A plume of smoke rose 1000 meters high and nearby villages were covered in ash. Fearing a major eruption, local authorities began evacuating 40,000 people. UN officials, meanwhile, issued a call for help: Volcanologists should begin monitoring Talang at once. Little did they know that, high above Earth, a small satellite was already watching the volcano. No one had told it to. EO-1 (short for "Earth Observing 1") noticed the warning signs and started monitoring Talang on its own. Indeed, by the time many volcanologists were reading their emails from the UN, 'EO-1 already had data,' says Steve Chien, leader of JPL's Artificial Intelligence Group." -
Solar Probe Films Plasma Loops, Sunspots in Action
brian0918 writes "NewScientist reports that Japan's Hinode (Solar-B) spacecraft has captured videos of surface details of the Sun, including the development of loops of hot plasma above the surface, and activity around sunspots. From the article: 'It is hoped that its observations will shed light on what triggers solar eruptions — called coronal mass ejections (CMEs). These ejections spew out radiation that poses a health risk for astronauts, and they can also knock out satellites. The mission team is still testing out the spacecraft's instruments, but full scientific observations will probably be underway by January 2007.' More videos can be viewed at NASA's site." -
Solar Probe Films Plasma Loops, Sunspots in Action
brian0918 writes "NewScientist reports that Japan's Hinode (Solar-B) spacecraft has captured videos of surface details of the Sun, including the development of loops of hot plasma above the surface, and activity around sunspots. From the article: 'It is hoped that its observations will shed light on what triggers solar eruptions — called coronal mass ejections (CMEs). These ejections spew out radiation that poses a health risk for astronauts, and they can also knock out satellites. The mission team is still testing out the spacecraft's instruments, but full scientific observations will probably be underway by January 2007.' More videos can be viewed at NASA's site." -
Solar Probe Films Plasma Loops, Sunspots in Action
brian0918 writes "NewScientist reports that Japan's Hinode (Solar-B) spacecraft has captured videos of surface details of the Sun, including the development of loops of hot plasma above the surface, and activity around sunspots. From the article: 'It is hoped that its observations will shed light on what triggers solar eruptions — called coronal mass ejections (CMEs). These ejections spew out radiation that poses a health risk for astronauts, and they can also knock out satellites. The mission team is still testing out the spacecraft's instruments, but full scientific observations will probably be underway by January 2007.' More videos can be viewed at NASA's site." -
NASA Playing With Unreal Engine For Virtual World
An anonymous reader writes "Daniel Laughlin, Project Manager for NASA's Learning Technologies Office spoke at the International Space Flight Museum in SecondLife and said that they are using the Unreal 3 Engine to create a synthetic world for training. The mission? The moon by 2020, and Mars by 2035. He said, 'We are combining the efforts of a commercial game developer, two universities and two NASA mission directorates into the project. If we can't check off all three boxes at the end, then we'll have done a poor job.'" -
Ares I Rocket Rumored To Be Too Heavy
eldavojohn writes "In an article entitled "Constellation Battles the Blogosphere," problems with the Ares I lift vehicle are dispelled by NASA. An e-mail containing the rumor that the payload was a metric ton too heavy spurred this post which caused a lot of sidelines speculation that NASA might be setting themselves up for failure and simply need to start over. From the article, '[M]any who carp from the sidelines do not seem to understand the systems engineering process. They instead want to sensationalize any issue to whatever end or preferred outcome they wish," wrote Jeff Hanley the NASA official leading the development of the rockets and spacecraft the United States is building to replace the space shuttle and to return to the Moon.' The article also mentions that NASA looked at 10,000 to 20,000 different iterations of designs in their "Exploration Systems Architecture Study." As armchair speculators of space exploration, do our posts & blogs create negative fallout for NASA or is public criticism like this healthy for keeping government agencies in line?" -
Mars Rovers Celebrate Their 1000th Sol On Mars
Cherita Chen writes, "Yesterday NASA, Cornell University, and the USGS celebrated the Mars Exploration Rovers' 1000th Sol on the Red Planet. The first rover to land, Spirit, reached the 1000 Sol mark a few weeks ago while the planet was in Solar conjunction. 'Opportunity,' Spirit's twin, and the second lander to make the bounce to Mars, celebrated the milestone yesterday while sitting atop Victoria Crater on the other side of Mars. Both Rovers are still operational (though Spirit is limping) and are sending back valuable data. Not bad for what was slated to be a '90 Sol' mission." -
Mars Rovers Celebrate Their 1000th Sol On Mars
Cherita Chen writes, "Yesterday NASA, Cornell University, and the USGS celebrated the Mars Exploration Rovers' 1000th Sol on the Red Planet. The first rover to land, Spirit, reached the 1000 Sol mark a few weeks ago while the planet was in Solar conjunction. 'Opportunity,' Spirit's twin, and the second lander to make the bounce to Mars, celebrated the milestone yesterday while sitting atop Victoria Crater on the other side of Mars. Both Rovers are still operational (though Spirit is limping) and are sending back valuable data. Not bad for what was slated to be a '90 Sol' mission." -
Mars Rovers Celebrate Their 1000th Sol On Mars
Cherita Chen writes, "Yesterday NASA, Cornell University, and the USGS celebrated the Mars Exploration Rovers' 1000th Sol on the Red Planet. The first rover to land, Spirit, reached the 1000 Sol mark a few weeks ago while the planet was in Solar conjunction. 'Opportunity,' Spirit's twin, and the second lander to make the bounce to Mars, celebrated the milestone yesterday while sitting atop Victoria Crater on the other side of Mars. Both Rovers are still operational (though Spirit is limping) and are sending back valuable data. Not bad for what was slated to be a '90 Sol' mission." -
Mars Rovers Celebrate Their 1000th Sol On Mars
Cherita Chen writes, "Yesterday NASA, Cornell University, and the USGS celebrated the Mars Exploration Rovers' 1000th Sol on the Red Planet. The first rover to land, Spirit, reached the 1000 Sol mark a few weeks ago while the planet was in Solar conjunction. 'Opportunity,' Spirit's twin, and the second lander to make the bounce to Mars, celebrated the milestone yesterday while sitting atop Victoria Crater on the other side of Mars. Both Rovers are still operational (though Spirit is limping) and are sending back valuable data. Not bad for what was slated to be a '90 Sol' mission." -
Mars Rovers Celebrate Their 1000th Sol On Mars
Cherita Chen writes, "Yesterday NASA, Cornell University, and the USGS celebrated the Mars Exploration Rovers' 1000th Sol on the Red Planet. The first rover to land, Spirit, reached the 1000 Sol mark a few weeks ago while the planet was in Solar conjunction. 'Opportunity,' Spirit's twin, and the second lander to make the bounce to Mars, celebrated the milestone yesterday while sitting atop Victoria Crater on the other side of Mars. Both Rovers are still operational (though Spirit is limping) and are sending back valuable data. Not bad for what was slated to be a '90 Sol' mission." -
NASA Proposes Manned Asteroid Mission
eldavojohn writes "NASA has proposed a manned asteroid mission to a near earth object. They mention this being viewed as a "gap-filler" to keep the public's attention between a lunar exploration & manned mars mission. The article also cites these goals as in line with the Constellation Program. From the article, 'Furthermore, a human venture to a space rock may well accelerate precursor robotic surveys of asteroids, Schweickart observed. "Early unmanned visits to asteroids ... it's the same pattern as we did with the Moon and we're doing right now with Mars. It's all pretty logical," he told SPACE.com.'" -
Cassini Observes Hurricane-Like Storm On Saturn
Aglassis writes "The Cassini spacecraft recently observed a hurricane-like storm on the south pole of Saturn. What makes this storm particularly interesting is that this is the first time that a clearly defined eyewall has been seen outside of the Earth in the Solar System. Neither the Great White Spot of Saturn nor the Great Red Spot of Jupiter have had an observable eyewall. NASA, JPL, and the Space Science Institute have released a short movie of the motion around the eyewall (mirrored at YouTube)." -
Cassini Observes Hurricane-Like Storm On Saturn
Aglassis writes "The Cassini spacecraft recently observed a hurricane-like storm on the south pole of Saturn. What makes this storm particularly interesting is that this is the first time that a clearly defined eyewall has been seen outside of the Earth in the Solar System. Neither the Great White Spot of Saturn nor the Great Red Spot of Jupiter have had an observable eyewall. NASA, JPL, and the Space Science Institute have released a short movie of the motion around the eyewall (mirrored at YouTube)." -
Cassini Observes Hurricane-Like Storm On Saturn
Aglassis writes "The Cassini spacecraft recently observed a hurricane-like storm on the south pole of Saturn. What makes this storm particularly interesting is that this is the first time that a clearly defined eyewall has been seen outside of the Earth in the Solar System. Neither the Great White Spot of Saturn nor the Great Red Spot of Jupiter have had an observable eyewall. NASA, JPL, and the Space Science Institute have released a short movie of the motion around the eyewall (mirrored at YouTube)." -
Cassini Observes Hurricane-Like Storm On Saturn
Aglassis writes "The Cassini spacecraft recently observed a hurricane-like storm on the south pole of Saturn. What makes this storm particularly interesting is that this is the first time that a clearly defined eyewall has been seen outside of the Earth in the Solar System. Neither the Great White Spot of Saturn nor the Great Red Spot of Jupiter have had an observable eyewall. NASA, JPL, and the Space Science Institute have released a short movie of the motion around the eyewall (mirrored at YouTube)." -
Cassini Observes Hurricane-Like Storm On Saturn
Aglassis writes "The Cassini spacecraft recently observed a hurricane-like storm on the south pole of Saturn. What makes this storm particularly interesting is that this is the first time that a clearly defined eyewall has been seen outside of the Earth in the Solar System. Neither the Great White Spot of Saturn nor the Great Red Spot of Jupiter have had an observable eyewall. NASA, JPL, and the Space Science Institute have released a short movie of the motion around the eyewall (mirrored at YouTube)." -
NASA's Rollercoaster For Moon Rocket Escape
simonbp writes "NASA's Constellation Project has approved the Rollercoaster Escape System to be used as the Emergency Egress Systems (EES) for astronauts and pad crew to race away from the Ares I pad, should an emergency be called. The Ares I is the first of NASA's new moon/Mars rockets and is scheduled for a first manned flight in 2014." From the article: "An unpowered fixed single-rail system from the access arm level of the ML tower to the existing bunker would be used. The railcars could be enclosed to provide personnel protection. Each railcar can hold four to six people. The rail would follow the ML tower vertically down to the pad surface, then turn and continue close to the ground to the safety bunker. A passive magnetic and friction braking system will decelerate the cars at the tracks end as well as prevent the cars from hitting each other." -
NASA's Rollercoaster For Moon Rocket Escape
simonbp writes "NASA's Constellation Project has approved the Rollercoaster Escape System to be used as the Emergency Egress Systems (EES) for astronauts and pad crew to race away from the Ares I pad, should an emergency be called. The Ares I is the first of NASA's new moon/Mars rockets and is scheduled for a first manned flight in 2014." From the article: "An unpowered fixed single-rail system from the access arm level of the ML tower to the existing bunker would be used. The railcars could be enclosed to provide personnel protection. Each railcar can hold four to six people. The rail would follow the ML tower vertically down to the pad surface, then turn and continue close to the ground to the safety bunker. A passive magnetic and friction braking system will decelerate the cars at the tracks end as well as prevent the cars from hitting each other." -
NASA STEREO Spacecraft Set to Launch
An anonymous reader writes "As first reported on last year, NASA's STEREO mission is set to launch tonight at 8:38pm EST. The two near-identical spacecraft will give us unprecedented stereoscopic views of the Sun-Earth system, hopefully leading to the creation of the first 3-D movies of the Sun! Launch can be watched live on NASA TV with coverage starting at 6:30pm EST." -
NASA STEREO Spacecraft Set to Launch
An anonymous reader writes "As first reported on last year, NASA's STEREO mission is set to launch tonight at 8:38pm EST. The two near-identical spacecraft will give us unprecedented stereoscopic views of the Sun-Earth system, hopefully leading to the creation of the first 3-D movies of the Sun! Launch can be watched live on NASA TV with coverage starting at 6:30pm EST." -
NASA Announces Record Ozone Hole
Drewsk writes "NASA has announced that the ozone hole over the Antarctic has broken all records. From the story: 'From September 21 to 30, the average area of the ozone hole was the largest ever observed, at 10.6 million square miles,' said Paul Newman, atmospheric scientist at NASA's Goddard Space Flight Center, Greenbelt, Md. If the stratospheric weather conditions had been normal, the ozone hole would be expected to reach a size of about 8.9 to 9.3 million square miles, about the surface area of North America."" -
Jupiter's Little White Spot Turns Red
Feelyat writes "NASA is reporting that a small storm that formed on Jupiter last year has changed color from white to red. According to an article in Yahoo News, scientist Amy Simon-Miller speculates that the storm might have gained strength as it decreased in size, similar to how 'spinning ice skaters go faster when they move their arms closer.' She says that the storm has probably 'picked up red material from lower in the Jupiter atmosphere, most likely some form of sulfur which turns red as part of a chemical reaction ...' Well, we might be one planet down, but our Solar System can still surprise." -
Black Hole Observed by X-Ray Satellite
eldavojohn writes "Scientists at JAXA and NASA used the Japanese Suzaku satellite to collect data and observations at a distance nearer to a black hole than we've ever been. From the article: 'The observations include clocking the speed of a black hole's spin rate and measuring the angle at which matter pours into the void, as well as evidence for a wall of X-ray light pulled back and flattened by gravity. The findings rely on a special feature in the light emitted close to the black hole, called the "broad iron K line," once doubted by some scientists because of poor resolution in earlier observations, now unambiguously revealed as a true measure of a black hole's crushing gravitational force.' Suzaku also has been providing images and data of super novas and their activities. It's always nice to see national space agencies working together, it almost gives me hope that the world might one day be united in space exploration." -
One Mars Probe Photographs Another
sighted writes "In one of the more remarkable shots ever taken by robotic space explorers, the Opportunity Mars rover has been photographed by the Mars Reconnaissance Orbiter ." From the article: "Shown in the image are 'Duck Bay,' the eroded segment of the crater rim where Opportunity first arrived at the crater; 'Cabo Frio,' a sharp promontory to the south of Duck Bay; and 'Cape Verde,' another promontory to the north. When viewed at the highest resolution, this image shows the rover itself, wheel tracks in the soil behind it, and the rover's shadow, including the shadow of the camera mast. After this image was taken, Opportunity moved to the very tip of Cape Verde to perform more imaging of the interior of the crater." -
A New Angle on Martian Methane
dusty writes "A recent hypothesis paper entititled 'Martian CH4: Sources, Flux, and Detection' delves into the production of methane on Mars. This hypothesis compares Mars with South Africa, and draws the conclusion that the radiolysis of martian ice and water while reacting with carbon dioxide can produce enough methane to account for recently observed concentrations. Methane is important because it is hard to explain. It has a short half-life and must be replenished frequently. As recently as 2005 the public line from NASA/JPL was that the methane could be produced by volcanism. Mars' dormant Olympus Mons is the largest volcano in the solar system but auspiciously quiet. A recent study from NOAA throws into question the whole idea stating, 'If Mauna Loa is a valid terrestrial analog, our findings suggest that volcanic activity is not a significant source of methane to the Martian atmosphere.'" -
Are Nuclear Powered Mars Rovers a Good Idea?
meatybeans writes "NASA officials are meeting today, with concerned residents around Cape Canaveral, regarding the power system for the upcoming Mars Science Lab mission. MSL is going to be like our current rovers on steroids. The plans call for a larger, heavier rover with a lot more juice for gadgets. This meeting however brings to light the issue of the power system for the MSL. The Mars Science Lab originally called for a nuclear power source, much like the Cassini and New Horizon missions use. Some vocal opposition to this has been voiced in the past. As a result, NASA has backup plans to employ solar power and small amounts of RTG's ? if arguments against straight nuclear for MSL win out. As with most, things 'NIMBY' ? seems to be in full effect when it comes RTG's. Does the recent success of the rovers show us that RTG's are not needed for Mars exploration? Are 1:420 odds of an accident that bad? Finally, are the hearings that are taking place between NASA and the public really just a formality in the name of public relations?" -
Mars Rover Reaches Victoria Crater
gevmage writes, "CNN reports that the 'Opportunity' rover on Mars has reached the Victoria crater. The rovers Spirit and Opportunity arrived on Mars three years ago with planned mission lifetime of 90 days. The rover Spirit is wounded, having only 5 of 6 wheels functioning, and so it's moving quite slowly. However, Opportunity is still going strong and has been trucking towards the massive crater Victoria for almost the past year. Scientists have been hoping that Opportunity would get there so they can have a look at geologically older areas — and it's finally made it!" See the NASA press release for links to photos of the Victoria crater. -
First Super Close-Up Pictures of Mars
Alien54 writes "The most powerful camera ever to orbit Mars will get its first close look at the Red Planet on Friday. The High-Resolution Imaging Science Experiment (HiRISE) camera flying aboard NASA's Mars Reconnaissance Orbiter (MRO) will relay its first low-altitude images to scientists at The University of Arizona beginning September 29. User-friendly web tools will be available to both the science community and the public to view/analyze HiRISE images and to submit observation requests. Processed images will be released soon after acquisition to allow everyone to share in the scientific discovery process. By combining very high resolution and signal-to-noise ratio with a large swath width, it is possible to for images to be collected on scales down to 1 meter." -
Study Finds World Warmth Edging to Ancient Levels
Krishna Dagli writes to mention a decades-long study by NASA scientists. According to the research, global temperatures are reaching highs not seen in thousands of years. From the article: "One of the findings from this collaboration is that the Western Equatorial Pacific and Indian Oceans are now as warm as, or warmer than, at any prior time in the Holocene. The Holocene is the relatively warm period that has existed for almost 12,000 years, since the end of the last major ice age. The Western Pacific and Indian Oceans are important because, as these researchers show, temperature change there is indicative of global temperature change. Therefore, by inference, the world as a whole is now as warm as, or warmer than, at any time in the Holocene. According to Lea, 'The Western Pacific is important for another reason, too: it is a major source of heat for the world's oceans and for the global atmosphere.'" -
NASA Testing Linux-Based Exploration Robots
SeenOnSlash.com writes "This week NASA is testing a Linux-based lunar rover called K-10 in the Arizona desert. To cut costs and promote maintainability the K-10 runs Linux and uses commercial off-the-shelf parts where possible. The robot rover's control and communications system is based on an IBM Thinkpad X31 and attaches to subsystems with standard PC interfaces. Real-time tasks such as fine-grained motor control are offloaded to a distributed network of microcontroller-powered control boards. Maneuvers can be watched through a live webcam." -
NASA Testing Linux-Based Exploration Robots
SeenOnSlash.com writes "This week NASA is testing a Linux-based lunar rover called K-10 in the Arizona desert. To cut costs and promote maintainability the K-10 runs Linux and uses commercial off-the-shelf parts where possible. The robot rover's control and communications system is based on an IBM Thinkpad X31 and attaches to subsystems with standard PC interfaces. Real-time tasks such as fine-grained motor control are offloaded to a distributed network of microcontroller-powered control boards. Maneuvers can be watched through a live webcam." -
Shuttle Atlantis Finally In Orbit
Klaidas writes "After delays, the shuttle Atlantis has finally been launched today as expected. NASA reports: 'The shuttle Atlantis is in orbit, headed for a challenging new phase in the construction of the International Space Station. Commander Brent Jett and his five crewmates will install a new 17-ton segment of the station's truss backbone, adding a new set of giant solar panels and batteries to the complex. Three spacewalks are planned.'" -
No Shadow From the Big Bang?
ultracool writes "In a finding sure to cause controversy, scientists at The University of Alabama in Huntsville (UAH) found a lack of evidence of shadows from "nearby" clusters of galaxies using new, highly accurate measurements of the cosmic microwave background (WMAP). Other groups have previously reported seeing this type of shadows in the microwave background. Those studies, however, did not use data from WMAP, which was designed and built specifically to study the cosmic microwave background." -
Lockheed Martin Wins Contract to Build Mars Lander
Lord_Slepnir writes "Lockheed Martin has won a contract to build the Orion crew exploration vehicle that will eventually take humans to the moon and then on to Mars. This vehicle will hopefully also replace the aging space shuttle fleet. According to NASA the vehicle will have manned missions by 2014 and moon missions by no later by 2020." -
SMART Probe to Crash Into the Moon
cyberbian writes "Amateur astronomers will be excited to note that they can witness the impact of the SMART-1 probe crashing into the moon. The impact is scheduled for the morning of September 2nd (PDT). From the article: 'There's nothing wrong with the spacecraft, which is wrapping up a successful 3-year mission to the Moon. SMART-1's main job was to test a European-built ion engine. It worked beautifully, propelling the craft in 2003 on a unique spiral path from Earth to the Moon. From lunar orbit, SMART-1 took thousands of high-resolution pictures and made mineral maps of the Moon's terrain. One of its most important discoveries was a "Peak of Eternal Light," a mountaintop near the Moon's north pole in constant, year-round sunlight. Peaks of Eternal Light are prime real estate for solar-powered Moon bases." -
NASA Clears Shuttle Atlantis for Sunday Launch
Davemania writes "This Sunday, NASA will resume the reconstruction of the International Space Station with the launch of the Space Shuttle Atlantis. NASA predicts a 60% chance that the weather will hold but will be keeping their eye at Tropical Storm Ernesto. The six-astronaut crew is tasked with deploying two large solar arrays and integrating the port 3/port 4 truss segment. As usual, the live launch can be seen on NASA TV." -
NASA Names New Spaceship 'Orion'
An anonymous reader writes "NASA's new spaceship that will carry astronauts to the moon and later to Mars has been officially named Orion. NASA confirmed the name after it was accidentally leaked to the media. Previously called the Crew Exploration Vehicle (CEV), Orion will be NASA's main human spaceflight vehicle after the space shuttle fleet is retired in 2010. Orion was named after one of the brightest constellations in the entire sky. Earlier this year, the rocket that will launch Orion was named Ares I, and the heavy-lift rocket was named Ares V. NASA hopes the new names will become as familiar as Apollo and Saturn V." -
SpaceX, Rocketplane Kistler Win NASA Competition
An anonymous reader writes "Two emerging space companies have won a NASA competition to provide low cost commercial transport to the International Space Station. SpaceX, founded by Elon Musk, is developing its two-stage reusable Falcon 9 launch vehicle and Dragon spacecraft, but it is making changes after the loss of Falcon 1 during its maiden launch. Rocketplane Kistler's K-1 is a two-stage reusable launch vehicle that has been in development for over a decade. Both companies represent a departure from business as usual at NASA. Boeing and Lockheed Martin are the largest companies in the aerospace industry and win most NASA contracts." -
CO2 Jets Bursting From Martian Ice Cap?
jeffsenter writes "NASA believes this may be the scene on the Martian South Pole as spring-time sunlight heats dust trapped in a layer of CO2 ice, causing it to sublime and ultimately burst through the seasonal upper dry ice layer. Here is the press release based on the findings in visible light and infrared from NASA's Odyssey and Mars Global Surveyor. Actual pictures of the spotting presumably caused by CO2/dust bursts on the Martian pole." -
CO2 Jets Bursting From Martian Ice Cap?
jeffsenter writes "NASA believes this may be the scene on the Martian South Pole as spring-time sunlight heats dust trapped in a layer of CO2 ice, causing it to sublime and ultimately burst through the seasonal upper dry ice layer. Here is the press release based on the findings in visible light and infrared from NASA's Odyssey and Mars Global Surveyor. Actual pictures of the spotting presumably caused by CO2/dust bursts on the Martian pole." -
CO2 Jets Bursting From Martian Ice Cap?
jeffsenter writes "NASA believes this may be the scene on the Martian South Pole as spring-time sunlight heats dust trapped in a layer of CO2 ice, causing it to sublime and ultimately burst through the seasonal upper dry ice layer. Here is the press release based on the findings in visible light and infrared from NASA's Odyssey and Mars Global Surveyor. Actual pictures of the spotting presumably caused by CO2/dust bursts on the Martian pole." -
Backward Sunspot Heralds Next Solar Cycle
GoramFrackinWacko writes "A backward sunspot chronicled on July 31st heralds the next solar cycle, and it looks to be a big one! From the article: 'Satellite operators and NASA mission planners are bracing for this next solar cycle because it is expected to be exceptionally stormy, perhaps the stormiest in decades. Sunspots and solar flares will return in abundance, producing bright auroras on Earth and dangerous proton storms in space.'" -
Voyager 1 Passes 100 AU from the Sun
An anonymous reader writes "Yesterday, Voyager 1 passed 100 astronomical units from the sun as it continues operating after nearly 30 years in space. That is about 15 billion kilometers or 9.3 billion miles as it travels about 1 million miles per day. Scientists still hope it will find the edge of the solar system and get into interstellar space." -
Astronomers Make Important Dark Matter Discovery
saudadelinux writes "To quote a press release on NASA's site, astronomers using the Chandra X-ray Observatory have discovered 'how dark and normal matter have been forced apart in an extraordinarily energetic collision.' There will be a briefing at noon, August 21 ET, on this discovery, with streaming media provided by NASA, and some details of the research posted on Harvard's Chandra site just beforehand." -
'Life on Mars' Meteorite Rejected After 10 Years
An anonymous reader writes "Ten years ago, NASA announced that the Martian meteorite ALH84001 showed evidence of life on Mars. The announcement made headlines around the world, and even prompted President Clinton to make a statement. Ten years later, most scientists believe that everything in the meteorite can be explained by non-biological processes. "We certainly have not convinced the community, and that's been a little bit disappointing," said David McKay, a scientist behind the 'life on Mars' paper. Unfortunately, David McKay's own brother is one of his critics. "He [David] got a little testy about the results we were getting," said Gordon McKay. "What we have shown is that it is possible to form these things inorganically."" -
'Life on Mars' Meteorite Rejected After 10 Years
An anonymous reader writes "Ten years ago, NASA announced that the Martian meteorite ALH84001 showed evidence of life on Mars. The announcement made headlines around the world, and even prompted President Clinton to make a statement. Ten years later, most scientists believe that everything in the meteorite can be explained by non-biological processes. "We certainly have not convinced the community, and that's been a little bit disappointing," said David McKay, a scientist behind the 'life on Mars' paper. Unfortunately, David McKay's own brother is one of his critics. "He [David] got a little testy about the results we were getting," said Gordon McKay. "What we have shown is that it is possible to form these things inorganically."" -
Japan Plans a Moonbase by 2030
Aglassis writes "The Japanese Aerospace Exploration Agency (JAXA) announced at a conference that they are planning to build a Moonbase by 2030. Since JAXA doesn't currently have a 100 ton-class heavy lift rocket or a human transportation system perhaps now is a good time for JAXA to join in with NASA on the Project Constellation rocket program." -
Titan's Lakes of Methane and Ethane
Rob Carr writes "During the most recent Cassini fly-by, the surface-mapping radar spotted what appear to be lakes in the high northern latitudes of Titan. From the article: 'The channels have a shape that strongly implies they were carved by liquid. Some of the dark patches and connecting channels are completely black, that is, they reflect back essentially no radar signal, and hence must be extremely smooth. In some cases rims can be seen around the dark patches, suggesting deposits that might form as liquid evaporates.' At Titan's temperatures, water is a solid; the lakes would be comprised of methane and ethane. The fluids are different, as are the temperatures, but these lakes cement Titan's status in the solar system as the place with the most earth-like weather — except for Earth, of course." -
30th Anniversary of Viking Landing on Mars
ewhac writes "30 years ago today, mankind paid our first visit to Mars. Viking 1 made its powered landing on the red planet on 20 July 1976 at 05:12 after an 11-month flight. Images and data from the probe were soon seen all over Earth as we got our first close-up look at our planetary neighbor. Viking 2 landed a few weeks later. Like the Pathfinder rovers that followed in 1997, Viking was expected to last but a short time -- only three months -- but instead continued to gather and return data for six years."