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  • NASA Video Shows What It's Like To Reenter the Earth's Atmosphere

    astroengine writes: In a mesmerizing new video released by NASA, the Dec. 5 reentry of the Orion test space vehicle is chronicled — and it's a phenomenal 10-minute ride from fiery reentry to sudden splashdown into the Pacific Ocean. (YouTube Link.)

    56 comments | 13 hours ago

  • LinuxFest Northwest 2015 Will be Held April 25 and 26 (Video)

    Their website says, 'Come for the code, stay for the people! We have awesome attendees and electrifying parties. Check out the robotics club, the automated home brewing system running on Linux, or the game room for extra conference fun.' This is an all-volunteer conference, and for a change the volunteers who run it are getting things together far in advance instead of having sessions that don't get scheduled until a few days before the conference, which has happened more than once with LFNW.

    So if you have an idea for a session, this is the time to start thinking about it. Sponsors are also welcome -- and since LFNW sponsorships regularly sell out, it's not to soon to start thinking about becoming a sponsor -- and if you are part of a non-profit group or FOSS project, LFNW offers free exhibit space because this is a conference that exists for the community, not to make money for a corporate owner. But don't delay. As you can imagine, those free exhibit spots tend to fill up early. (Alternate Video Link)

    20 comments | yesterday

  • Kepler Makes First Exoplanet Discovery After Mission Reboot

    astroengine writes NASA's Kepler space telescope has detected its first new extrasolar planet after mission engineers were able to save the mission from a premature death after two of the exoplanet hunter's four stabilizing reaction wheels failed last year. Called "K2," the extended mission arose from an "innovative idea" that appears to have given the prolific telescope a new lease on life. "Last summer, the possibility of a scientifically productive mission for Kepler after its reaction wheel failure in its extended mission was not part of the conversation," said Paul Hertz, NASA's astrophysics division director at the agency's headquarters in Washington D.C. "Today, thanks to an innovative idea and lots of hard work by the NASA and Ball Aerospace team, Kepler may well deliver the first candidates for follow-up study by the James Webb Space Telescope to characterize the atmospheres of distant worlds and search for signatures of life."

    27 comments | yesterday

  • Satellite Captures Glowing Plants From Space

    sciencehabit writes About 1% of the light that strikes plants is re-emitted as a faint, fluorescent glow—a measure of photosynthetic activity. Today, scientists released a map of this glow as measured by the Orbiting Carbon Observatory-2, a NASA satellite launched in July with the goal of mapping the net amount of carbon in the atmosphere. The map reveals that tropical rainforests near the equator are actively sucking up carbon, while the Corn Belt in the eastern United States, near the end of its growing season, is also a sink. Higher resolution fluorescence mapping could one day be used to help assess crop yields and how they respond to drought and heat in a changing climate.

    40 comments | yesterday

  • India Successfully Test Fires Its Heaviest Rocket

    vasanth (908280) writes India on Thursday moved forward in rocket technology with the successful flight testing of its heaviest next generation rocket and the crew module . The 630-tonne three-stage rocket, Geo-Synchronous Satellite Launch Vehicle Mark III, carried active solid boosters, liquid core stage and a passive cryo stage and a crew module to test its re-entry characteristics. This rocket is capable of doubling the capacity of payloads India can carry into space and it can deposit up to four tonne class of communication satellites into space. India also plans to use this rocket for ferrying Indian astronauts into space. For India, ISRO (the Indian space agency) perfecting the cryogenic engine technology is crucial as India can save precious foreign exchange by launching heavy duty communication satellites by itself.

    56 comments | 2 days ago

  • Startup Helps You Build Your Very Own Picosatellite On a Budget

    Zothecula writes A Glasgow-based startup is reducing the cost of access to space by offering "satellite kits" that make it easier for space enthusiasts, high schools and universities alike to build a small but functional satellite for as little as US$6,000 and then, thanks to its very small size, to launch for significantly less than the popular CubeSats.

    21 comments | 2 days ago

  • Terrestrial Gamma Ray Bursts Very Common

    Rambo Tribble writes It was long thought that gamma ray bursts were the exclusive province of deep space sources. More recently it was found that storms could produce such emissions, but such occurrences were thought rare. Now, data from NASA's Fermi satellite suggest such events happen over a thousand times a day. Per Prof. Joseph Dwyer, from the University of New Hampshire, "These are big, monster bursts of gamma rays, and one would think these must be monster storms producing them. But that's not the case. Even boring-looking, garden-variety, little storms can produce these."

    69 comments | 2 days ago

  • NASA Tests Feasibility of 3D Printing on the Moon and Other Planets

    ErnieKey writes A major application of 3d printing that could revolutionize space travel would be using 3d printers to create structures on non-terrestrial bodies like the moon, other planets, and even asteroids. Researchers from NASA's Kennedy Space Center have been working to develop solutions to materials issues, and recently presented initial findings on the potential for using in-situ materials like basalt for 3D printing. Their innovative method is based on only using in-situ supplies, and not materials that need to be brought into space.

    58 comments | 2 days ago

  • NASA Study Proposes Airships, Cloud Cities For Venus Exploration

    An anonymous reader writes: IEEE Spectrum reports on a study out of NASA exploring the idea that manned missions to Venus are possible if astronauts deploy and live in airships once they arrive. Since the atmospheric pressure at the surface is 92 times that of Earth, and the surface temperate is over 450 degrees C, the probes we've sent to Venus haven't lasted long. The Venera 8 probe sent back data for only 50 minutes after landing. Soviet missions in 1985 were able to get much more data — 46 hours worth — by suspending their probes from balloons. The new study refines that concept: "At 50 kilometers above its surface, Venus offers one atmosphere of pressure and only slightly lower gravity than Earth. Mars, in comparison, has a "sea level" atmospheric pressure of less than a hundredth of Earth's, and gravity just over a third Earth normal. The temperature at 50 km on Venus is around 75 C, which is a mere 17 degrees hotter than the highest temperature recorded on Earth.

    The defining feature of these missions is the vehicle that will be doing the atmospheric exploring: a helium-filled, solar-powered airship. The robotic version would be 31 meters long (about half the size of the Goodyear blimp), while the crewed version would be nearly 130 meters long, or twice the size of a Boeing 747. The top of the airship would be covered with more than 1,000 square meters of solar panels, with a gondola slung underneath for instruments and, in the crewed version, a small habitat and the ascent vehicle that the astronauts would use to return to Venus's orbit, and home."

    198 comments | 2 days ago

  • SpaceX To Attempt Falcon 9 Landing On Autonomous Spaceport Drone Ship

    An anonymous reader writes: SpaceX has announced that at the conclusion of its next rocket flight, it will attempt a precision landing of its Falcon 9 first stage onto an autonomous ocean platform. They say the odds of success aren't great, but it's the beginning of their work to make this a reality. Quoting: "At 14 stories tall and traveling upwards of 1300 m/s (nearly 1 mi/s), stabilizing the Falcon 9 first stage for reentry is like trying to balance a rubber broomstick on your hand in the middle of a wind storm. To help stabilize the stage and to reduce its speed, SpaceX relights the engines for a series of three burns.

    The first burn—the boostback burn—adjusts the impact point of the vehicle and is followed by the supersonic retro propulsion burn that, along with the drag of the atmosphere, slows the vehicle's speed from 1300 m/s to about 250 m/s. The final burn is the landing burn, during which the legs deploy and the vehicle's speed is further reduced to around 2 m/s. ... To complicate matters further, the landing site is limited in size and not entirely stationary. The autonomous spaceport drone ship is 300 by 100 feet, with wings that extend its width to 170 feet. While that may sound huge at first, to a Falcon 9 first stage coming from space, it seems very small. The legspan of the Falcon 9 first stage is about 70 feet and while the ship is equipped with powerful thrusters to help it stay in place, it is not actually anchored, so finding the bullseye becomes particularly tricky."

    81 comments | 2 days ago

  • Spacecraft Spots Probable Waves On Titan's Seas

    sciencehabit writes: It's springtime on Titan, Saturn's giant and frigid moon, and the action on its hydrocarbon seas seems to be heating up. Near the moon's north pole, there is growing evidence for waves on three different seas, scientists reported at a meeting of the American Geophysical Union. Researchers are also coming up with the first estimates for the volume and composition of the seas. The bodies of water appear to be made mostly of methane, and not mostly ethane as previously thought. And they are deep: Ligeia Mare, the second biggest sea with an area larger than Lake Superior, could contain 55 times Earth's oil reserves.

    82 comments | 3 days ago

  • A Domain Registrar Is Starting a Fiber ISP To Compete With Comcast

    Jason Koebler writes: Tucows Inc., an internet company that's been around since the early 90s — it's generally known for being in the shareware business and for registering and selling premium domain names — announced that it's becoming an internet service provider. Tucows will offer fiber internet to customers in Charlottesville, Virginia — which is served by Comcast and CenturyLink — in early 2015 and eventually wants to expand to other markets all over the country. "Everyone who has built a well-run gigabit network has had demand exceeding their expectations," Elliot Noss, Tucows' CEO said. "We think there's space in the market for businesses like us and smaller."

    65 comments | 3 days ago

  • Curiosity Detects Mysterious Methane Spikes On Mars

    astroengine writes: A gas strongly associated with life on Earth has been detected again in the Martian atmosphere, opening a new chapter in a decade-old mystery about the on-again, off-again appearance of methane on Mars. The latest discovery comes from NASA's Curiosity rover, which in addition to analyzing rocks and soil samples, is sniffing the air at its Gale Crater landing site. A year ago, scientists reported that Curiosity had come up empty-handed after an eight-month search for methane in the atmosphere, leaving earlier detections by ground-based telescopes and Mars-orbiting spacecraft an unexplained anomaly. "We thought we had closed the book on methane. It was disappointing to a lot of people that there wasn't significant methane on Mars, but that's where we were," Curiosity scientist Christopher Webster with NASA's Jet Propulsion Laboratory in Pasadena, Calif., told Discovery News.

    67 comments | 3 days ago

  • Ask Slashdot: How Should a Liberal Arts Major Get Into STEM?

    An anonymous reader writes: I graduated with a degree in the liberal arts (English) in 2010 after having transferred from a Microbiology program (not for lack of ability, but for an enlightening class wherein we read Portrait of the Artist). Now, a couple years on, I'm 25, and though I very much appreciate my education for having taught me a great deal about abstraction, critical thinking, research, communication, and cheesily enough, humanity, I realize that I should have stuck with the STEM field. I've found that the jobs available to me are not exactly up my alley, and that I can better impact the world, and make myself happier, doing something STEM-related (preferably within the space industry — so not really something that's easy to just jump into). With a decent amount of student debt already amassed, how can I best break into the STEM world? I'm already taking online courses where I can, and enjoy doing entry-level programming, maths, etc.

    Should I continue picking things up where and when I can? Would it be wiser for me to go deeper into debt and get a second undergrad degree? Or should I try to go into grad school after doing some of my own studying up? Would the military be a better choice? Would it behoove me to just start trying to find STEM jobs and learn on the go (I know many times experience speaks louder to employers than a college degree might)? Or perhaps I should find a non-STEM job with a company that would allow me to transfer into that company's STEM work? I'd be particularly interested in hearing from people who have been in my position and from employers who have experience with employees who were in my position, but any insight would be welcome.

    279 comments | 3 days ago

  • NASA's $349 Million Empty Tower

    An anonymous reader writes: In a scathing indictment of NASA's bureaucracy, the Washington Post documents a $349 million project to construct a laboratory tower that was closed as soon as it was finished. From the article: "[The tower was] designed to test a new rocket engine in a chamber that mimicked the vacuum of space. ... As soon as the work was done, it shut the tower down. The project was officially 'mothballed' — closed up and left empty — without ever being used. ... The reason for the shutdown: The new tower — called the A-3 test stand — was useless. Just as expected. The rocket program it was designed for had been canceled in 2010. ... The result was that NASA spent four more years building something it didn't need. Now, the agency will spend about $700,000 a year to maintain it in disuse. ... Jerked from one mission to another, NASA lost its sense that any mission was truly urgent. It began to absorb the vices of less-glamorous bureaucracies: Officials tended to let projects run over time and budget. Its congressional overseers tended to view NASA first as a means to deliver pork back home, and second as a means to deliver Americans into space. In Mississippi, NASA built a monument to its own institutional drift."

    196 comments | 3 days ago

  • Mysterious Martian Gouges Carved By Sand-surfing Dry Ice

    sciencehabit writes: After the Mars Reconnaissance Orbiter began beaming back close-up images of the Red Planet, researchers spotted peculiar features along the slopes of dunes: long, sharply defined grooves that seem to appear and disappear seasonally. They look like trails left behind by tumbling boulders, but rocks never appear in the sunken pits at the trail ends. Researchers initially took these gullies as signs of flowing liquid water, but a new model suggests they're the result of sand-surfing dry ice that breaks off from the crests of dunes and skids down slopes. This is no ordinary tumble — according to the model, the bases of the chunks are continually sublimating, resulting in a hovercraftlike motion that gouges the dune while propelling the ice down slopes.

    26 comments | 4 days ago

  • Interviews: Ask Jonty Hurwitz About Art and Engineering

    samzenpus (5) writes "Jonty Hurwitz is an artist with a degree in engineering who says each one of his pieces is "a study on the physics of how we perceive space and is the stroke of over 1 billion calculations and algorithms." Recently, his nano sculpture project drew a lot of attention. With help from the Weizmann Institute of Science and using a 3D printing technique by the Institute of Microstructure Technology at the Karlsruhe Institute of Technology, Hurwitz created a number of sculptures that were so small they could fit in the eye of a needle, or on a human hair. Jonty has agreed to answer any questions you have big or very small. As usual, ask as many as you'd like, but please, one per post."

    31 comments | 4 days ago

  • Sir Richard Branson Quietly Shelves Virgin Submarine Plan

    An anonymous reader writes with news that Sir Richard Branson's goal of diving to the deepest part of the ocean has been put on indefinite hold. "Sir Richard Branson has quietly shelved his latest adventure: an ambitious plan to pilot a submarine to the deepest points of the world's five oceans. The entrepreneur had a grand scheme to explore both space and sea. But his plan for the first rocket ship charging passengers for trips to the edge of space is in jeopardy after the craft crashed during a test flight, killing a pilot. Now Sir Richard's dream of exploring the lowest points on Earth is also on hold. Virgin Oceanic's DeepFlight Challenger submarine was unveiled in a blaze of publicity in April 2011, with Sir Richard describing its mission as 'the last great challenge for humans.' He had hoped the 18ft-long submarine, designed to 'fly' along the ocean floor, would make its maiden voyage to the bottom of the Pacific's Mariana Trench – at a depth of 36,000ft, the lowest known point on Earth – by the end of 2011, or failing that, by 2012."

    47 comments | 4 days ago

  • SpaceX Set To Create 300 New US Jobs and Expand Facilities

    littlesparkvt writes The SpaceX manufacturing plant in McGregor, TX is set to spend $46 million on an expansion that would create 300 full-time jobs. SpaceX is proposing to invest $46.3 million in the site during the next five years. They will spend $32.4 million in real property improvements and $13.9 million in personal property improvements.

    43 comments | 5 days ago

  • Raspberry Pi In Space

    mikejuk (1801200) writes "When British astronaut Tim Peake heads off to the International Space Station in November, 2015, he will be accompanied on his 6-month mission by two augmented Raspberry Pis, aka Astro Pis. The Astro Pi board is a Raspberry Pi HAT (short for Hardware Attached on Top), and provides a gyroscope, accelerometer, and magnetometer, as well as sensors for temperature, barometric pressure, and humidity. It also has a real time clock, LED display, and some push buttons — it sounds like the sort of addon that we could do with down here on earth as well! It will also be equipped with both a camera module and an infra-red camera. UK school pupils are being challenged to write Raspberry Pi apps or experiments to run in space. During his mission, Tim Peake will deploy the Astro Pis, upload the winning code while in orbit, set them running, collect the data generated and then download it to be distributed to the winning teams.

    56 comments | 5 days ago

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