Domain: nasa.gov
Stories and comments across the archive that link to nasa.gov.
Stories · 2,550
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There Were Mega-Tsunamis On Mars (popularmechanics.com)
An anonymous reader quotes a report from Popular Mechanics: Today, a team of scientists has announced the first discovery of extraterrestrial tsunamis. A team of astronomers and geologists led by J. Alexis Rodriguez at the Planetary Science Institute in Tucson, Arizona has uncovered evidence of massive tsunamis on Mars billions of years ago. As Rodriguez reports, two separate mega-tsunamis tore across the red planet around 3.4 billion years ago, a time when Mars was a mere 1.1 billion years old and nearby Earth was just cradling its first microbial lifeforms. The two tsunamis created 150-foot-high shore-break waves on average, and some absolutely monster waves up to 400 feet tall. Rodriguez and his colleagues outline their tsunami findings today in the journal Scientific Reports. From the report: "Rodriquez and his colleagues stumbled across evidence of these tsunamis while scouring over images of Mars' relatively flat northern planes. Two regions called Chryse Planitia and Arabia Terra. Using detailed infrared maps rendered by the thermal camera on the 15-year-old Mars Odyssey orbiter, the scientists identified the high water marks of the tsunamis -- features that look a lot like ancient ocean coastlines." Within the last year alone, scientists have spotted the signs of flowing water on Mars, recently discovering how water flows on the red planet. NASA has detected atomic oxygen in the atmosphere of the planet, too. -
Superjet Technology Nears Reality After Successful Australia Test (cnet.com)
An anonymous reader quotes a report from Yahoo: A two-hour flight from Sydney to London is a step closer to reality after the latest successful test Wednesday of hypersonic technology in the Australian desert. A joint US-Australian military research team is running a series of 10 trials at the world's largest land testing range, Woomera in South Australia, and at Norway's Andoya Rocket Range. Hypersonic flight involves traveling at more than five times the speed of sound (Mach 5). Scientists involved in the program -- called Hypersonic International Flight Research Experimentation (HIFiRE) -- are developing an engine that can fly at Mach 7, Michael Smart of the University of Queensland told AFP. He added that the scramjet was a supersonic combustion engine that uses oxygen from the atmosphere for fuel, making it lighter and faster than fuel-carrying rockets. The experimental rocket in the trial on Wednesday reached an altitude of 278 kilometers and a target speed of Mach 7.5, Australia's defense department said. The first test of the rocket was conducted in 2009. The next test is scheduled for 2017 with the project expected to be completed in 2018. It's only a matter of time before such high-speed transportation technology is implemented into our infrastructure. Last week, Hyperloop One conducted a successful test of its high speed transportation technology in the desert outside Las Vegas. -
Europa's Ocean Chemistry Could Be Earth-Like (discovery.com)
An anonymous reader writes: Alien life in the universe could be close to home, swimming around Europa's ocean. The idea has been floating around scientific minds for more than a decade: beneath the icy surface of the Jovian moon could slosh a deep, wide ocean with the perfect environment for life to develop. In new research published in the journal Geophysical Research Letters, NASA scientists studied how the chemical composition of the Europan ocean may have evolved and what chemicals it possibly contains, assuming similar geochemical processes as on Earth are at play. Europa is thought to possess a rocky core fractured with deep cracks that have filled with water. Since the formation of the moon, the core has continued to cool, creating more cracks and exposing more rocks to chemical processes with this water."We're studying an alien ocean using methods developed to understand the movement of energy and nutrients in Earth's own systems," said planetary scientist Steve Vance, of NASA's Jet Propulsion Laboratory in Pasadena, Calif. "The cycling of oxygen and hydrogen in Europa's ocean will be a major driver for Europa's ocean chemistry and any life there, just it is on Earth." -
NASA's Planet Hunter Spots Record 1,284 New Planets, 9 In A Habitable Zone (networkworld.com)
coondoggie quotes a report from Network World: NASA's planet hunting space telescope Kepler added a record 1,284 confirmed planets to its already impressive discoveries of extraterrestrial worlds. [This batch of planets is the largest single account of new planets since Kepler launched in 2009 and more than doubles the number of confirmed planets realized by the space telescope so far to more than 2,300.] The discoveries were a result of an automated technique implemented in a publicly available custom software package called Vespa, which lets scientists analyze thousands of signals Kepler has identified to determine which are most likely to be caused by planets and which are caused by non-planetary objects such as stars. "Vespa computed the reliability values for over 7,000 signals identified in the latest Kepler catalog which identified 4,302 potential planets and verified the 1,284 planets with 99% certainty," said the Princeton researchers that developed Vespa. NASA said, based on their size, nearly 550 of the validated planets could be rocky like Earth. Nine of which orbit in their sun's habitable zone. -
Atomic Oxygen Detected In Martian Atmosphere (cnn.com)
An anonymous reader quotes a report from CNN: Atomic oxygen has been detected in the atmosphere of Mars, according to NASA. The atoms were discovered in the Martian mesosphere, the upper layers of the red planet's atmosphere. This discovery will enable researchers to have a better understanding of the elusive Martian atmosphere. Atomic oxygen can help scientists determine atmospheric erosion and how other gases escape Mars. It also affects the radiative cooling from the carbon-dioxide bands in the Martian thermosphere, which is above the mesosphere. The atomic oxygen discovery was made using an instrument on board the Stratospheric Observatory for Infrared Astronomy, or SOFIA. SOFIA is a Boeing 747SP jet that has been modified for research purposes to carry a 100-inch diameter telescope. Using the German Receiver for Astronomy at Terahertz Frequencies, known as GREAT, allowed researchers to distinguish between oxygen from our atmosphere and that of the Martian atmosphere. They discovered half the amount of atomic oxygen expected, most likely due to variations in the atmosphere itself, and scientists will continue to use SOFIA to study the Martian atmosphere. -
NASA Launches Searchable Database Of Public Domain Patents (slashgear.com)
An anonymous reader quotes a report from SlashGear: NASA has released a bunch of patents for its technologies so that anyone can use them. A total of 56 'formerly-patented' technologies developed by the government are now available in the public domain, meaning they can be used for commercial purposes in an unrestricted manner. To make it easier to find these technologies and others like them, NASA has also created a new searchable database that links the public to thousands of the agency's now-expired patents. According to NASA, the patents it has released may have non-aerospace applications that could help companies with commercial projects underway. Of the 56 formerly-patented technologies, users will find things like methods of propulsion, thrusters, rocket nozzles, advanced manufacturing processes, and more. NASA is "encouraging entrepreneurs to explore new ways to commercial NASA technologies," says NASA executive Daniel Lockney. Here's a direct link to search the database to your heart's content. -
NASA Launches Searchable Database Of Public Domain Patents (slashgear.com)
An anonymous reader quotes a report from SlashGear: NASA has released a bunch of patents for its technologies so that anyone can use them. A total of 56 'formerly-patented' technologies developed by the government are now available in the public domain, meaning they can be used for commercial purposes in an unrestricted manner. To make it easier to find these technologies and others like them, NASA has also created a new searchable database that links the public to thousands of the agency's now-expired patents. According to NASA, the patents it has released may have non-aerospace applications that could help companies with commercial projects underway. Of the 56 formerly-patented technologies, users will find things like methods of propulsion, thrusters, rocket nozzles, advanced manufacturing processes, and more. NASA is "encouraging entrepreneurs to explore new ways to commercial NASA technologies," says NASA executive Daniel Lockney. Here's a direct link to search the database to your heart's content. -
Can Quantum Entanglement Create Faster-Than-Light Communication? (mit.edu)
Slashdot reader StartsWithABang writes: If you were to send a space probe to a distant star system, gather information about it and send it back to Earth, you'd have to wait years for the information to arrive. But if you have an entangled quantum system -- say, two photons, one with spin +1 and one with spin -1 -- you could know the spin of the distant one instantly by measuring the spin of the one in your possession.
This "incredible idea to exploit quantum weirdness" for communication was the subject of a recent Forbes article [which blocks ad-blockers] as well as a NASA mission directorate. ("Entanglement-assisted Communication System for NASA's Deep-Space Missions: Feasibility Test and Conceptual Design".) And Friday MIT News reported a research team is now making progress toward capturing paired electron halves for quantum computing on gold film. "Our first goal is to look for the Majorana fermions, unambiguously detect them, and show this is it. "
This week even 85-year-old Star Trek actor William Shatner cited quantum entanglement in a discussion of Star Trek's transporter technology, arguing that "Although a lot of the concepts in science fiction are absurd to our Newtonian minds, anything is possible because of the new language of quantum physics." -
NASA Gives Solar Ionic Propulsion A Monster Boost (networkworld.com)
coondoggie quotes a report from Network World: NASA this week took a giant step toward using solar electric power for future space missions by awarding a $67 million contract to Aerojet Rocketdyne to develop an advanced electric propulsion system. Network World writes, "Specifically, Aerojet Rocketdyne will develop and deliver an integrated electric propulsion system -- known as the Advanced Electric Propulsion System (AEPS) -- consisting of a thruster, power processing unit (PPU), low-pressure xenon flow controller, and electrical harness. Such a system would deploy large solar arrays that can be used to convert sunlight into electrical power that ionizes atoms of xenon which is the propellant for the spacecraftâ(TM)s thrusters. In addition, such a power plant could potentially increase spaceflight fuel efficiency by 10 times over current chemical propulsion technology and more than double thrust capability compared to current electric propulsion systems, NASA said." NASA's plan is to use this propulsion system on its future Asteroid Redirect Mission, as well as on its mission to Mars. -
NASA: Top 10 Space Junk Missions (networkworld.com)
coondoggie writes: NASA' s Orbital Debris Program Office said that by far the source of the greatest amount of orbital debris remains the Fengyun-1C spacecraft, which was the target of a People's Republic of China anti-satellite test in January 2007. Much more debris is now floating around Earth's atmosphere since the six years NASA last looked at the top 10 space junk missions. The space agency says that 10 missions out of the 5,160 space missions that have launched since 1957 account for approximately one-third of all cataloged objects now in Earth orbit. NASA said that the second and fourth most significant satellite breakups are Cosmos 2251 and Iridium 33 spacecraft, which were involved in the first ever accidental satellite collision February 2009. -
Shockwave Images Help NASA In Development of 'Quiet' Supersonic Jet (go.com)
An anonymous reader writes: NASA is working on developing a next-generation supersonic jet that can break the sound barrier with a soft "thump" instead of a sonic boom. They are using a technique called schlieren imagery to "visualize supersonic flow phenomena with full-scale aircraft in flight" with the sun as the backdrop for the photos. According to a NASA blog post, viewing shock waves and their density is crucial to the project so engineers can work on a design to minimize those reverberations. While the Quiet Supersonic Technology (QueSST) research aircraft is being developed, stunning images were captured of a supersonic jet flying at Mach 1.05 with the sun in the background. NASA says when QueSST is operational, it could "unlock the future to commercial supersonic flight over land," essentially ushering in a new era of aviation that could allow us to get from point A to point B faster and without the loud roar of the Concorde as it breaks the sound barrier. -
How George W. Bush and NASA Saved SpaceX From Financial Ruin (blastingnews.com)
MarkWhittington quotes a report from Blasting News: Elon Musk and the people at SpaceX are rightly basking in the afterglow of finally landing the first stage of the Falcon 9 rocket on a drone barge in the Atlantic. The same flight delivered an expandable module built by Bigelow Aerospace to the International Space Station. But, as Ars Technica points out, the launch, landing, and arrival at the space station would not have taken place had it not been for the generosity of NASA. George W. Bush began the Commercial Orbital Transportation Services (COTS) program, which commercialized first cargo and then crew flights to and from the ISS. Four years later, SpaceX, having endured a number of launch failures of its small Falcon 1 rocket, was running out of cash. They were teetering on the brink of financial ruin as they were trying to develop a much larger and more complex Falcon 9 that would compete with more established launch vehicles such as the Atlas 5 and the Delta 4. Then NASA announced the initial contracts for COTS cargo flights. SpaceXâ(TM)s share was $1.6 billion. The NASA contract saved the company and allowed it to press on with building the Falcon 9 and the Dragon and then successfully compete for the Commercial Crew contracts. -
How George W. Bush and NASA Saved SpaceX From Financial Ruin (blastingnews.com)
MarkWhittington quotes a report from Blasting News: Elon Musk and the people at SpaceX are rightly basking in the afterglow of finally landing the first stage of the Falcon 9 rocket on a drone barge in the Atlantic. The same flight delivered an expandable module built by Bigelow Aerospace to the International Space Station. But, as Ars Technica points out, the launch, landing, and arrival at the space station would not have taken place had it not been for the generosity of NASA. George W. Bush began the Commercial Orbital Transportation Services (COTS) program, which commercialized first cargo and then crew flights to and from the ISS. Four years later, SpaceX, having endured a number of launch failures of its small Falcon 1 rocket, was running out of cash. They were teetering on the brink of financial ruin as they were trying to develop a much larger and more complex Falcon 9 that would compete with more established launch vehicles such as the Atlas 5 and the Delta 4. Then NASA announced the initial contracts for COTS cargo flights. SpaceXâ(TM)s share was $1.6 billion. The NASA contract saved the company and allowed it to press on with building the Falcon 9 and the Dragon and then successfully compete for the Commercial Crew contracts. -
Kepler Recovered from Emergency and Stable (nasa.gov)
Here's an exciting update on NASA's Kepler, which entered "emergency mode" last week. An anonymous reader points us to a press release on NASA's official website: Mission operations engineers have successfully recovered the Kepler spacecraft from Emergency Mode (EM). On Sunday morning, the spacecraft reached a stable state with the communication antenna pointed toward Earth, enabling telemetry and historical event data to be downloaded to the ground. The spacecraft is operating in its lowest fuel-burn mode. The mission has cancelled the spacecraft emergency, returning the Deep Space Network ground communications to normal scheduling. Once data is on the ground, the team will thoroughly assess all on board systems to ensure the spacecraft is healthy enough to return to science mode and begin the K2 mission's microlensing observing campaign, called Campaign 9. This checkout is anticipated to continue through the week. Earth-based observatories participating in Campaign 9 will continue to make observations as Kepler's health check continues. The K2 observing opportunity for Campaign 9 will end on July 1, when the galactic center is no longer in view from the vantage point of the spacecraft. -
NASA's Kepler Enters Emergency Mode 75 Million Miles From Earth (theverge.com)
Loren Grush, writing for The Verge: NASA engineers have declared a mission emergency for the agency's planet-hunting spacecraft Kepler, which has somehow switched into emergency mode. Now that a mission emergency has been declared, the Kepler team has priority access to NASA's deep space telecommunications system in order to try to get the spacecraft back to normal operations. Emergency mode is the lowest operational mode the spacecraft has. It also requires a lot more fuel than usual, which is why the Kepler mission team is working hard to get the spacecraft back to normal. But communication with Kepler isn't easy. The spacecraft is estimated to be 75 million miles away from Earth right now, according to NASA, so any communications signal traveling at the speed of light will take up to 13 minutes to travel to and from the spacecraft. Kepler has detected nearly 5,000 exoplanets over the years -- of which 1,000 have been confirmed. -
Record-Setting Astronaut Retires from NASA (space.com)
Record-setting NASA astronaut Scott Kelly retired from NASA on Friday, after spending more than 520 days in outer space, spread across four space missions -- two space shuttle flights and two recent missions on the orbiting International Space Station. The 52-year-old astronaut's last visit to the space station lasted more than a year, "a profound challenge for all involved," Kelly says, "and it gave me a unique perspective and a lot of time to reflect on what my next step should be on our continued journey to help further our capabilities in space and on Earth." Kelly's time in space started with a 1999 mission on the space shuttle to NASA's Hubble Space Telescope, and he's since spent more time in space than any other American. According to Space.com, NASA and Kelly have both said that his long-duration visits are the first baby steps towards a manned missions to Mars. -
Japan's $273 Million Satellite Has Broken Up Into 'Multiple Pieces' (techinsider.io)
An anonymous reader writes: The Japan Aerospace Exploration Agency (JAXA) announced that it has lost contact with its "Hitomi" satellite -- a state-of-the-art X-ray observatory, developed in conjunction with NASA, to spy on energetic processes in space including black holes, massive galaxies, and exploding stars. On Sunday, March 27, the Japanese Space Agency announced it had lost contact with the satellite on March 26, just a little more than a month after it was launched on February 17. Now, Members of the U.S. Joint Space Operations Center (JSpOC), a military organization that identifies and tracks space debris near Earth, said five objects were drifting near the location of Hitomi at around the same time it lost communication with Earth, Nature reports. It's being reported that Hitomi has separated into "multiple pieces" before March 26. Currently, there are about 40 JAXA technicians scouring the skies, trying to locate the expensive observatory. -
Unmanned Cargo Ship Reaches ISS On Resupply Mission (telegraph.co.uk)
An anonymous reader writes: NASA partner Orbital ATK reports an unmanned cargo shipped has successfully docked at the ISS, delivering 7,900 lbs (3.6 metric tons) worth of supplies for the crew of six astronauts. The supplies consisted of food, water, clothes, and materials needed for scientific research such as a new 3D printer and Gecko Gripper. The operation was over by 1452 GMT as the space station's robotic arm, operated by crew members, captured Cygnus and guided it into its berthing port. Orbital has launched five supply missions to the ISS as part of a $1.9 billion contract with NASA. "Our flexible Cygnus spacecraft has a lot of work left to do. Following its stay at the ISS, and for the first time, we will undertake three experiments onboard the unmanned spacecraft," said Frank Culbertson, president of Orbital ATK's Space Systems Group. -
Unmanned Cargo Ship Reaches ISS On Resupply Mission (telegraph.co.uk)
An anonymous reader writes: NASA partner Orbital ATK reports an unmanned cargo shipped has successfully docked at the ISS, delivering 7,900 lbs (3.6 metric tons) worth of supplies for the crew of six astronauts. The supplies consisted of food, water, clothes, and materials needed for scientific research such as a new 3D printer and Gecko Gripper. The operation was over by 1452 GMT as the space station's robotic arm, operated by crew members, captured Cygnus and guided it into its berthing port. Orbital has launched five supply missions to the ISS as part of a $1.9 billion contract with NASA. "Our flexible Cygnus spacecraft has a lot of work left to do. Following its stay at the ISS, and for the first time, we will undertake three experiments onboard the unmanned spacecraft," said Frank Culbertson, president of Orbital ATK's Space Systems Group. -
How Many Digits of Pi Does NASA Use? (kottke.org)
An anonymous reader quotes an article on Kottke.org: Mathematicians have calculated pi out to more than 13 trillion decimal places, a calculation that took 208 days. NASA's Marc Rayman explains that in order to send out probes and slingshot them accurately throughout the solar system, NASA needs to use only 15 decimal places. Rayman explains, "The most distant spacecraft from Earth is Voyager 1. It is about 12.5 billion miles away. Let's say we have a circle with a radius of exactly that size (or 25 billion miles in diameter) and we want to calculate the circumference, which is pi times the radius times 2. Using pi rounded to the 15th decimal, as I gave above, that comes out to a little more than 78 billion miles. We don't need to be concerned here with exactly what the value is (you can multiply it out if you like) but rather what the error in the value is by not using more digits of pi. In other words, by cutting pi off at the 15th decimal point, we would calculate a circumference for that circle that is very slightly off. It turns out that our calculated circumference of the 25 billion mile diameter circle would be wrong by 1.5 inches. Think about that. We have a circle more than 78 billion miles around, and our calculation of that distance would be off by perhaps less than the length of your little finger." -
NASA Will Intentionally Burn Unmanned Orbiting Craft In Space (phys.org)
An anonymous reader writes from an article on Phys.org: NASA said it will test the effects of a large fire in space by setting off a blaze inside an orbiting unmanned space craft. NASA has set off tiny controlled fires in space in the past, but never tested how large flames react inside a space capsule in space. The goal is to measure the size of the flames, how quickly they spread, the heat output, and how much gas is emitted. The results of this experiment, dubbed Saffire-1, will determine how much fire resistance is needed in the ultra-light material used in the spacecraft and the astronaut's gear. It will also help NASA build better fire detection and suppression systems for their spaceships, and study how microgravity and limited amounts of oxygen affect the size of the flames. -
NASA's New Horizons Shows Methane Ice-Capped Mountains On Pluto (nasa.gov)
Last week, it was ice canyons; now, as an anonymous reader writes: The latest images to come from NASA's New Horizons space probe's encounter with Pluto last July 2015 is of a methane snow-capped mountain range around that dwarf planet's equator located in the region known to scientists as Cthulhu. Cthulhu starts from the west of Sputnik Planum, a great nitrogen ice plain, and stretches 1,850 miles long and 450 miles wide, half way around Pluto's equator, making it slightly larger than the state of Alaska. Cthulhu appears to be a dark surface on all of the images returned by New Horizons. Scientists theorize that the darkness is caused by thorins, molecules that result when methane is exposed to sunlight. Cthulhu is a complex region, containing both smooth and heavily cratered plains and the mountain range already mentioned. -
Hubble Shatters the Cosmic Distance Record
An anonymous reader writes: One of the holy grails of cosmology is to measure, directly, exactly when the first stars and galaxies formed in our Universe. The Hubble Space Telescope has been pushing the distance record farther and farther back, with its measurements typically confirmed by ground-based, spectroscopic follow-ups. This time, however, the new record-holder was so distant that confirmation needed to be done from space: by Hubble itself. The result? A galaxy at a redshift of z=11.1, from when the Universe was just 400 million years old, or a mere 3% of its current age. This is a record that will likely stand until the James Webb Space Telescope launches, as it took a combination of incredible work and incredible luck to find a galaxy this far back with our current technology. -
Two Astronauts Return To Earth After Record 340 Days In ISS (technews.mobi)
An anonymous reader writes: U.S. astronaut Scott Kelly and Russian astronaut Mikhail Kornienko returned to Earth Wednesday after spending a year aboard the ISS, conducting experiments for future missions to Mars. Mikhail Kornienko, 55, and Scott Kelly, 52, completed the longest uninterrupted period aboard the ISS since the station was deployed in 2000. Kelly, who has made four trips to the ISS, also breaks the record for cumulative time in space by an American, with 540 days. Kelly and Kornienko performed this mission to study the biological and psychological effects of long stays in space in order to prepare for future missions to Mars in 2030 or sooner. During their stay at the station, both were frequently subjected to medical examination and a battery of tests to study the long-term effects of micro-gravity on the human body. -
NASA's IBEX Observations Pin Down Interstellar Magnetic Field (astronomynow.com)
An anonymous reader writes: Immediately after its 2008 launch, NASA's Interstellar Boundary Explorer (IBEX) spotted a curiosity in a thin slice of space: more particles streamed in through a long, skinny swath in the sky than anywhere else. Now, a new study uses IBEX data and simulations of the interstellar boundary to better describe space in our galactic neighborhood. The paper, published earlier this month in The Astrophysical Journal Letters, precisely determines the strength and direction of the magnetic field outside the heliosphere. Such information gives us a peek into the magnetic forces that dominate the galaxy beyond, teaching us more about our home in space. The new paper is based on one particular theory of the origin of the IBEX ribbon, in which the particles streaming in from the ribbon are actually solar material reflected back at us after a long journey to the edges of the Sun's magnetic boundaries. -
NASA's New Horizons Returns Images of the Canyons of Pluto's North Pole (examiner.com)
MarkWhittington writes: NASA's New Horizon space probe, which flew by Pluto last July, continues to send data and images that amaze and awe. The space agency released an image of Pluto's North Pole taken by the probe's Ralph/Multispectral Visible Imaging Camera (MVIC). The image shows, as has previous images of other regions of the so-called dwarf planet, that Pluto is a diverse world with an active geology. The North Pole of Pluto is characterized by long canyons that are covered in yellow methane ice. The canyons show how the dwarf planet had, and perhaps still has active tectonics.. -
Why LIGO's Black Holes Probably Didn't Come From a Single Star
An anonymous reader writes: Ever since LIGO first announced the direct detection of gravitational waves from two merging black holes, the physics and astronomy community has been struggling to understand an unexpected phenomenon that appears to have come along with it: a short-period gamma ray burst. Arriving just 0.4 seconds after the gravitational waves did, the Fermi satellite's detection doesn't line up with models of black hole mergers. It's thought that short-period GRBs originate from neutron star-neutron star mergers, and so seeing this has led to speculation of new physics, including from Avi Loeb at Harvard that perhaps LIGO's twin black holes came from inside the same star. However, this explanation is exceedingly unlikely, and there are a number of astrophysical explanations that don't require new physics like Loeb's explanation would. -
NASA Announces WFIRST As a New Space Observatory (blastingnews.com)
MarkWhittington writes: While NASA has been touting the impending launch of the James Webb Space Telescope in 2018, the space agency is already discussing the space observatory due to take off after that, WFIRST. WFIRST was adapted from a spare telescope from the National Reconnaissance Organization. WFRST is due to be launched in the mid-2020s, having evolved from a study to a full-fledged project. The telescope is estimated to cost $2 billion from now until the time it is launched and deployed. -
NASA Compared Pluto's Moon Charon To 'The Incredible Hulk' (nasa.gov)
MarkWhittington writes: NASA's New Horizon spacecraft has shown Pluto to be an active world that is far more interesting to scientists than anyone imagined when the probe was launched about ten years ago. Pluto's moon Charon has also proven to be a world of interest, not the least because of how it formed and then expanded billions of years ago.
The surface of Charon is covered with ridges, scarps, and valleys. One of the latter is, at least, four miles deep. Scientists suggest that in the distant past Charon expanded, pulling about much like the comic book character Bruce Banner bursting through his clothes as he changes into the Incredible Hulk. -
Apollo Astronaut Edgar Mitchell, Sixth Man On the Moon, Dies At 85 (examiner.com)
MarkWhittington writes: According to a story in the Palm Beach Post, Edgar Mitchell, the sixth man to walk on the moon, has died at the age of 85. He flew as lunar module pilot on board Apollo 14, which flew to and from the moon between January 31, 1971 and February 9, 1971. His crewmates were Alan Shepard and Stuart Roosa. Apollo 14 was the return to flight for the moon landing program after the near disaster of Apollo 13 in April 1970, and explored the Fra Mauro highlands on the lunar surface. NASA marks Mitchell's passing as well. -
Tiny Pluto Big On Frozen Water Reserves
New submitter rmdingler writes that a new map created by NASA based on the New Horizons flyby of Pluto "shows much more frozen water than scientists initially expected." Using LEISA to photograph from 108,000 kilometers away, much more of the recently demoted planet's frozen surface liquid is water, rather than methane, carbon monoxide, and nitrogen as originally posited. -
Tiny Pluto Big On Frozen Water Reserves
New submitter rmdingler writes that a new map created by NASA based on the New Horizons flyby of Pluto "shows much more frozen water than scientists initially expected." Using LEISA to photograph from 108,000 kilometers away, much more of the recently demoted planet's frozen surface liquid is water, rather than methane, carbon monoxide, and nitrogen as originally posited. -
NASA, NOAA Analyses Reveal Record-Shattering Global Warm Temperatures In 2015 (nasa.gov)
vikingpower writes: Earth's 2015 surface temperatures were the warmest since modern record keeping began in 1880, according to independent analyses by NASA and the National Oceanic and Atmospheric Administration (NOAA). Globally-averaged temperatures in 2015 shattered the previous mark set in 2014 by 0.23 degrees Fahrenheit (0.13 Celsius). Only once before, in 1998, has the new record been greater than the old record by this much. The British Met office also reports on the same phenomenon, even forecasting that global temperatures are very soon going to reach the one-degree-Celsius marker. According to Stephen Belcher, Director of the Met Office Hadley Centre, "We've had similar natural events in the past, yet this is the first time we're set to reach the 1 C marker and it's clear that it is human influence driving our modern climate into uncharted territory." -
Growing Flowers In Space (nasa.gov)
An anonymous reader writes: This weekend, NASA astronaut Scott Kelly posted a picture of the first flower to bloom in space. The International Space Station has been home to the Veggie plant growth facility for almost two years, and scientists have been working hard to figure out how to keep crops alive in microgravity. It's a challenge to keep plants properly heated and hydrated, and their current specimens been attacked by mold as well. "More crops for Veggie are heading to the orbiting laboratory aboard SpaceX-8. The Veg-03 run will include two sets of Chinese cabbage, and one set of red romaine lettuce. In 2018, there are plans to launch dwarf tomato seeds to the space station. Smith said the lessons learned from growing zinnia flowers will be critical in the process of growing tomatoes, a fellow flowering plant. Studies are also in progress to see how adjusting the lighting in the Veggie plant growth facility can affect plan mineral composition. There will be preflight testing to determine what 'light recipe' to use aboard the station." -
Growing Flowers In Space (nasa.gov)
An anonymous reader writes: This weekend, NASA astronaut Scott Kelly posted a picture of the first flower to bloom in space. The International Space Station has been home to the Veggie plant growth facility for almost two years, and scientists have been working hard to figure out how to keep crops alive in microgravity. It's a challenge to keep plants properly heated and hydrated, and their current specimens been attacked by mold as well. "More crops for Veggie are heading to the orbiting laboratory aboard SpaceX-8. The Veg-03 run will include two sets of Chinese cabbage, and one set of red romaine lettuce. In 2018, there are plans to launch dwarf tomato seeds to the space station. Smith said the lessons learned from growing zinnia flowers will be critical in the process of growing tomatoes, a fellow flowering plant. Studies are also in progress to see how adjusting the lighting in the Veggie plant growth facility can affect plan mineral composition. There will be preflight testing to determine what 'light recipe' to use aboard the station." -
Katherine Johnson: NASA's Pioneering Female Physicist (thenewstack.io)
destinyland writes: Tuesday's State of the Union address included a shout-out to Katherine Johnson, the pioneering African American mathematician and physicist who calculated the trajectory of Alan Shepherd's 1961 space trip. "Her reputation was so strong that John Glenn asked her to recheck the calculations made by the new electronic computers before the mission on which he became the first American to orbit the Earth," notes one technology reporter. NASA policy at the time was to not acknowledge the female contributors to scientific papers, though "She literally wrote the textbook on rocket science," according to one NASA official, noting that her impact literally reaches all the way to the moon. At a ceremony in November, Johnson was awarded the Presidential Medal of Freedom, and the 97-year-old pioneer continues to encourage young people to also pursue careers in technology, science, engineering and math. -
Katherine Johnson: NASA's Pioneering Female Physicist (thenewstack.io)
destinyland writes: Tuesday's State of the Union address included a shout-out to Katherine Johnson, the pioneering African American mathematician and physicist who calculated the trajectory of Alan Shepherd's 1961 space trip. "Her reputation was so strong that John Glenn asked her to recheck the calculations made by the new electronic computers before the mission on which he became the first American to orbit the Earth," notes one technology reporter. NASA policy at the time was to not acknowledge the female contributors to scientific papers, though "She literally wrote the textbook on rocket science," according to one NASA official, noting that her impact literally reaches all the way to the moon. At a ceremony in November, Johnson was awarded the Presidential Medal of Freedom, and the 97-year-old pioneer continues to encourage young people to also pursue careers in technology, science, engineering and math. -
NASA Safety Panel Finds Concerns With the Journey To Mars (examiner.com)
MarkWhittington writes: NASA's Aerospace Safety Advisory Panel issued its annual report on various space agency programs. The panel found a number of areas of concern surrounding the Journey to Mars program, virtually all of them stemming from inadequate funding. It suggested that NASA's plan to launch the first crewed mission on the Orion, which would use the heavy lift Space Launch System to go around the moon, in 2021 was unrealistic given current, anticipated funding. The panel also suggested that lack of a clear plan for the Mars program is compromising its viability. It also suggested that the decision not to return to the moon should be revisited in view of the desire of international partners to do so and the need of low gravity surface experience in advance of going to Mars -
NASA Rings Out 2015 With Close Looks At Ceres and Enceladus (examiner.com)
MarkWhittington writes: 2015 was a historical year for NASA with its close flyby of the dwarf planet Pluto last July. But the space agency rings out the year with some close looks at two divergent worlds thanks to its far-ranging space probes. The Dawn mission returned the closest images yet of the dwarf planet Ceres, the largest body in the asteroid belt. Also, the space agency released images of Saturn's icy moon Enceladus, whose ice geysers have fascinated scientists, indicating a subsurface ocean similar to the one that resides beneath the ice moon of Jupiter, Europa. -
NASA Rings Out 2015 With Close Looks At Ceres and Enceladus (examiner.com)
MarkWhittington writes: 2015 was a historical year for NASA with its close flyby of the dwarf planet Pluto last July. But the space agency rings out the year with some close looks at two divergent worlds thanks to its far-ranging space probes. The Dawn mission returned the closest images yet of the dwarf planet Ceres, the largest body in the asteroid belt. Also, the space agency released images of Saturn's icy moon Enceladus, whose ice geysers have fascinated scientists, indicating a subsurface ocean similar to the one that resides beneath the ice moon of Jupiter, Europa. -
The Astronaut Hopeful's Manifesto (forbes.com)
StartsWithABang writes: Many of us dreamed of becoming astronauts as a child, but gave up on that dream for a number of reasons — the seemingly impossible odds, the demands of daily life, the rigors of preparation — and never even applied. But for a great many, that dream remains alive; the last time NASA had open applications, over 6,000 people threw their hat in the ring, with eight selected. Yesterday, NASA once again opened up astronaut applications, and one prospective applicant has written a manifesto about lessons learned in becoming an aspiring astronaut. While not all of us have the desire to strap ourselves to a rocket and orbit in a tin can above Earth, we all have something to learn from this perspective. -
Huge, Jupiter-Like Storm Rages On Cool 'Failed Star' (nasa.gov)
astroengine writes: Jupiter's Big Red Spot is the largest example of a long-lived storm in the solar system, but now it has some pretty stiff competition in another star system. However, this "exo-storm" hasn't been spied on another gas giant, it's been spotted in the uppermost layers of a cool, small "failed star," or brown dwarf. Using three NASA space telescopes, new research published in The Astrophysical Journal has found that this spot isn't a starspot, but a bona fide storm that has more in common with Jupiter's famous cyclone. So is this really a failed star? Or is is an "overachieving planet"? -
New Horizons' First Ultra High Resolution Photos of Pluto Released
StartsWithABang writes: After a 9 year journey to Pluto, NASA's New Horizons spacecraft made its closest approach to Pluto this past July, taking so much data that it will take a full 16 months to send it all back. The first of the highest resolution photos ever taken were released by NASA earlier today, and before the data has even been scientifically analyzed, a visual inspection teaches us a number of things about its sedimentary history, its active geology and its transient, eroding mountainous terrain. Perhaps the best part: Pluto is the prototype for the most common type of world in the Universe, even though it's not a planet anymore. -
More Than Half of Kepler's Giant Exoplanets Were False Positives
StartsWithABang writes: By surveying an area of the sky containing over 150,000 stars visible to it, the Kepler satellite monitored each one over a multi-year period looking for periodic changes in brightness. Thousands of planetary candidates emerged via the transit method, where periodic dips of 3% or less were noted with regularity. However, a follow-up study has come out on the giant exoplanets, finding that over 50% of them aren't giant planets after all, but wound up being eclipsing binary stars. Perhaps our lone star Solar System is the oddity, after all. -
NASA Prepares To Launch an Orion and 3 Cubesats To Deep Space: 3 Years To Go (examiner.com)
MarkWhittington writes: As NASA has noted, the space agency and its contractors are working diligently on the first launch of the heavy-lift Space Launch System. The launch, officially called EM-1, or Exploration Mission 1, will loft an unpiloted version of the Orion spacecraft around the moon. NASASpaceFlight.com also noted that a number of secondary payloads, known as CubeSats, will be along for the ride as well. NASA considered EM-1, scheduled for 2018, a crucial step in its Journey to Mars which will, it is hoped, reach its ultimate destination sometime in the 2030s. -
NASA Concludes That Comets, Not Alien Megastructures Orbit KIC 8462852 (examiner.com)
MarkWhittington writes: Back in October, findings from the Kepler Space Telescope suggested that something strange was going on around a star called KIC 8462852. Kepler was built to detect exoplanets by measuring the cycles of dimming light from other stars, indicating that a large object was passing between them and Earth. But the dimming light cycle from KIC 8462852 seemed to suggest a lot of smaller objects swarming around it. Scientists narrowed down the explanations to either a swarm of comets or alien megastructures. NASA announced evidence garnered by two other telescopes that pointed to the comet explanation. -
Dark Matter Grows Hair Around Stars and Planets (forbes.com)
StartsWithABang writes: Dark matter may make up 27% of the Universe's energy density, compared to just 5% of normal (atomic) matter, but in our Solar System, it's notoriously sparse. In particular, there's just a nanogram's worth per cubic kilometer, which makes the fact that we've never directly detected it seem inevitable. But recent work has demonstrated that Earth and all the planets leave a "wake" of dark matter where the density is enhanced by a billion times or more. Time to go put those dark matter detectors where they belong: in the path of these dark matter hairs. -
How Close Are We To a Mars Mission? (thenewstack.io)
destinyland writes: NASA is developing the capabilities needed to send humans to an asteroid by 2025 and Mars in the 2030s," reads the official NASA web site. But National Geographic points out that "the details haven't been announced, in large part because such a massive, long-term spending project would require the unlikely support of several successive U.S. presidents." And yet on November 4th, NASA put out a call for astronaut applications "in anticipation of returning human spaceflight launches to American soil, and in preparation for the agency's journey to Mars," and they're currently experimenting with growing food in space. And this week they not only ordered the first commercial mission to the International Space Station, but also quietly announced that they've now partnered with 22 private space companies. -
How Close Are We To a Mars Mission? (thenewstack.io)
destinyland writes: NASA is developing the capabilities needed to send humans to an asteroid by 2025 and Mars in the 2030s," reads the official NASA web site. But National Geographic points out that "the details haven't been announced, in large part because such a massive, long-term spending project would require the unlikely support of several successive U.S. presidents." And yet on November 4th, NASA put out a call for astronaut applications "in anticipation of returning human spaceflight launches to American soil, and in preparation for the agency's journey to Mars," and they're currently experimenting with growing food in space. And this week they not only ordered the first commercial mission to the International Space Station, but also quietly announced that they've now partnered with 22 private space companies. -
NASA Orders SpaceX Crew Mission To International Space Station (nasa.gov)
An anonymous reader writes: NASA has placed its first mission order for SpaceX to launch astronauts to the International Space Station from U.S. soil. SpaceX is now in a race with Boeing, who received a similar order in May, to see which private space company can deliver astronauts to the ISS first. NASA said, "Commercial crew missions to the space station, on the Boeing CST-100 Starliner and SpaceX Crew Dragon spacecraft, will restore America's human spaceflight capabilities and increase the amount of time dedicated to scientific research aboard the orbiting laboratory." They anticipate dramatic reductions in cost for launching astronauts to orbit compared to similar missions aboard Russian rockets. "Each company also must successfully complete a certification process before NASA will give the final approval for flight. Each contract includes a minimum of two and a maximum potential of six missions. A standard commercial crew mission to the station will carry up to four NASA or NASA-sponsored crew members and about 220 pounds of pressurized cargo. The spacecraft will remain at the station for up to 210 days, available as an emergency lifeboat during that time."