NASA halts efforts to repair Kepler space telescope

Posted on 16/08/2013 by Sean Buckley

It's had a good run, but it seems like NASA's Kepler telescope is down for the count -- the space agency says it has stopped repair efforts. The 0.95 meter diameter space telescope launched four years ago, tasked with seeking out Earth-sized planets suitable for habitation. All was going well until the rig's gyroscopic reaction wheels began to fail, robbing it of the precision aim needed to continue its task. After months of testing, NASA has concluded that it won't be able to restore the telescope to full working order.

That doesn't mean the mission is at an end, however -- NASA still has to sort troves of previously collected data, thumbing through over 3,500 exoplanet candidates to add to the 135 celestial bodies Kepler has already identified. The hardware may one day see a second life too, as engineers attempt to assess what can be done with the remaining two reaction wheels and the telescope's attitude control thrusters. Without significant (and now abandoned) repair efforts, Kepler will never be precise enough to continue its primary mission, but NASA is hopeful it will eventually find a new purpose.

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NASA picks eight astronaut trainees that may go to asteroids and Mars (video)

Posted on 18/06/2013 by Jon Fingas

If you like space exploration, you'll want to get used to these eight faces -- odds are that you'll see at least some of them again. They represent NASA's 2013 astronaut candidate class, and they'll start training in August for a chance at going on missions to the International Space Station, asteroids and even Mars. The trainee pool is more eclectic than usual this time around. Half the picks are women, while three of the candidates come from non-military outfits such as Harvard Medical School and NOAA. Check out the full roster after the break.

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Via: Space Travel

Source: NASA

Visualized: Space hurricane! NASA’s Cassini records super cyclone on Saturn (video)

Posted on 29/04/2013 by Mark Hearn

If the crashing sound of lightning striking Saturn wasn't enough to excite your inner-meteorologist, then perhaps footage of a raging extraterrestrial hurricane will win you over. After orbiting the ringed planet for nine years, NASA's Cassini probe has managed to snag video of a super storm on the celestial body's north pole. Cloaked by the darkness of winter, the hurricane's eye became visible as Saturn's northern hemisphere transitioned into spring. Unlike the tropical cyclones of Earth (see: Hurricane Katrina, Sandy and Irene), this furious typhoon has been spinning for several years and has winds that flow at speeds exceeding 300MPH. Further differentiating itself from our world's whirlwinds, this alien cyclone is locked to its planet's north pole and is fueled by small amounts of water vapor instead of an actual ocean. Completely in a category of its own, the hurricane's eye measures about 1,250 miles wide and is surrounded by fluffy white clouds the size of Texas. To see this Saturnian fury in all its glory, check out the video after the break and feel free to leave your gratuitous hurricane names in the comments below.

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Source: NASA

NASA’s Kepler discovers three potentially habitable planets

Posted on 18/04/2013 by Mark Hearn

NASA's Kepler telescope has discovered three "super-Earth-size" exoplanets that are close enough to their stars to make them possibly suitable for water. Two of the planets (Kepler-62e and Kepler-62f) orbit a K2 dwarf estimated to be around 7 billion years old. Measuring at two-thirds the size of our sun, this cosmic lantern is orbited by a total of five planets, three of which are too close to be habitable for life. Kepler-69c, the biggest of this newly discovered trio is estimated to be 70 percent larger than Earth and takes 242 days to revolve around its sun-like star Kepler-69. While there's great excitement surrounding these new findings, this isn't the first time we've spotted a potentially habitable planet. A little over a year ago Kepler discovered Kepler-22b, an exoplanet about 600 light-years away from Earth believed to be covered in liquid. Like their predecessor, NASA has yet to determine if these newfound planets actually have water or a rocky composition. Until then, Ridley Scott might want to hold off on naming them as locations for his sequel to Prometheus.

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Via: Wired

Source: NASA

Electron showers could create the nano-spacesuit of the future

Posted on 18/04/2013 by Joseph Volpe

Historically, whenever man or beast's been bombarded with massive amounts of radiation the results have either been gruesome or wholly fantastical (see: any superhero origin story). But recent research out of Japan indicates that a barrage of electrons could actually help scientists revolutionize microbiology and, more excitingly, space travel. The experiment, conducted by a team from the Hamamatsu University of Medicine, found that the larvae of fruit flies hit with this electron rush were able to withstand an electron microscope's hostile vacuum unharmed and even grew to be healthy adults. The results weren't so rosy for the untreated group which, understandably, suffered a grislier fate: death by dehydration. The magic, it turns out, is in that subatomic spray, as the group treated with an electron shower benefited from a polymerizing effect or, more plainly, a bonding of molecules just above the skin's surface that yielded a tough, protective nano-layer measuring between 50- to 100-billionths of a meter thick. Finesse that technique some and it's easy to why one NASA scientist thinks this could lead to the creation of a super-thin "space shield... that could protect against dehydration and radiation."

The process is still far from foolproof, however, seeing as how an increase in the microscope's resolution requires an equal boost in radiation -- all of which is fatal to the insects. So, in order to go deeper and get a more close-up view of the larvae's internals, the team's currently exploring new methods of fabricating these "nano-suits" using an array of chemicals. If you're wondering just how far-off we are from practical human application, then consider this: the amount of radiation required to form the bonded layer is akin to "sunbathing naked on the top of Everest under a hole in the ozone." Which is to say, keep dreaming. And get Jeff Goldblum on the phone while you're at it... we have a promising idea for a Return of the Fly sequel.

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Via: Wired

Source: ScienceNOW

Curiosity rover finds radiation levels on Mars are safe for humans

Posted on 17/11/2012 by Alexis Santos

It's been three months since NASA's Curiosity rover set ~~foot~~ wheels down on Martian terrain, and now the space agency has divulged what it's learned about radiation on Mars. Marking the first time radiation has been measured from the surface of another planet, preliminary data collected using the rover's Radiation Assessment Detector (or RAD for short) revealed that levels on the ground are similar to what astronauts encounter on the International Space Station. What's that mean for space travel? "The astronauts can live in this environment," Don Hassler, principal investigator on Curiosity's RAD hardware, said in a press conference. However, humans would still experience higher levels of radiation on the way to and from the red planet than on its surface. The results are encouraging, but they're just one of many developments left before Homo sapiens set foot on Mars. For more details on the RAD's findings, look below for the press release.

Continue reading Curiosity rover finds radiation levels on Mars are safe for humans

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Curiosity rover finds radiation levels on Mars are safe for humans originally appeared on Engadget on Sat, 17 Nov 2012 13:30:00 EDT. Please see our terms for use of feeds.

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Visualized: Curiosity rover’s self-portrait

Posted on 02/11/2012 by Mark Hearn

No, Disney isn't working on Wall-E the live action movie. Pictured above is a self-portrait of NASA's Curiosity rover resting in the Gale crater of Mars. Showcasing some extreme detail, this high-res photo was captured by the Red Planet roller's Mars Hand Lens Imager (MAHLI), with its native image clocking in at 5,463 x 7,595 pixels. The picture's Martian backdrop consists of a trail of freshly made tire tracks with a glimpse of Curiosity's future destination Mount Sharp hanging out in the distance. If you gaze deeply into the unmanned craft's soulless robotic eye, you'll catch a reflection of Mars staring right back at you. To get a closer look at our favorite Martian in all of its uncompressed glory, you can snag the 125MB image file from the second source link below.

[Image credit: NASA/JPL-Caltech/Malin Space Science Systems]

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Visualized: Curiosity rover's self-portrait originally appeared on Engadget on Fri, 02 Nov 2012 18:00:00 EDT. Please see our terms for use of feeds.

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9-gigapixel image of the Milky Way reminds us just how small we truly are

Posted on 27/10/2012 by Mark Hearn

They say a picture is worth a thousand words, but this just leaves us speechless. Pictured above is a compressed 108,500 x 81,500 pixel image of 84 million stars across central parts of the Milky Way. Taken by the VISTA survey telescope at the ESO's Paranal Observatory in Chile, this 9-gigapixel photo is the result of thousands of individual images being meshed together. If it were printed out at the average resolution of a standard book it would measure a mind-boggling 9 x 7 meters. Using three separate infrared filters, VISTA is able to see through dust fields that normally obscure the view of an optical telescope. By studying this monumental image, astronomers hope to gain a better understanding of how galaxies form and evolve. If you'd like to take a look at this galactic work of art in its entirety, you can do so by visiting the source link below.

(Image credit: ESO/VVV Consortium)

Continue reading 9-gigapixel image of the Milky Way reminds us just how small we truly are

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9-gigapixel image of the Milky Way reminds us just how small we truly are originally appeared on Engadget on Sat, 27 Oct 2012 06:41:00 EDT. Please see our terms for use of feeds.

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NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth

Posted on 12/10/2012 by Jon Fingas

It's hard to deny the appeal of a space-bound robot like NASA's Robonaut 2, fears of subversion notwithstanding. The space agency and Florida's Institute for Human and Machine Cognition know it, and they want to put that technology into an exoskeleton with a nobler purpose than performing chores on space stations. The in-development X1 (not yet pictured) adapts the Robonaut's skills to a body-hugging frame with 10 points of movement that might give humans an assist when they need it the most. In space, the X1 could automate and add challenge to exercise for astronauts in low gravity, or provide the extra muscle for that fabled day we return to manned surface exploration. NASA envisions its exoskeleton having more grounded uses as well, such as rehabilitation for leg injuries or walking for those who never had the chance. Although we're not expecting a rapid turnaround knowing NASA's lengthy schedules, we might see the X1 in use sooner than most such products in the wake of a purposefully quick development cycle -- and, no doubt, a few interested customers here on Earth.

Continue reading NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth

Filed under: Robots, Wearables, Science

NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth originally appeared on Engadget on Fri, 12 Oct 2012 01:06:00 EDT. Please see our terms for use of feeds.

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Space Shuttle Atlantis hands-on: a look inside (video)

Posted on 06/10/2012 by Alexis Santos

Space Shuttles Discovery, Endeavour and Enterprise have all left Kennedy Space Center for new homes, but Atlantis? She's staying. Come November 2nd, the orbiter will be wheeled out to a 65,000-square-foot exhibit, which is still being constructed at KSC's visitor complex. Though the craft's cargo bay doors will be open and its remote manipulator arm extended when its displayed, visitors won't be able to climb aboard it -- or any of the other shuttles, for that matter. However, we got the chance to visit Bay 2 of the Orbiter Processing Facility, step inside Atlantis and give it the hands-on treatment. Look out below for the gallery or hit the jump for the full video tour.

Gallery: Inside Space Shuttle Atlantis