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Today NASA Astronauts Steve Swanson and Rick Mastracchio, along with International Space Station Commander Koichi Wakata from JAXA, sent greetings to President Obama during the President's visit to Japan. 

The President toured the National Museum of Emerging Science and Innovation with U.S. Ambassador to Japan Caroline Kennedy, where he received a briefing on the Global Precipitation Measurement mission. GPM is an international satellite mission launched by NASA and JAXA in February that will set new standards for precipitation measurements worldwide using a network of satellites united by the GPM Core Observatory. For more information about GPM, visit:

Space Station Crew Sends Greetings to President Obama
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Space Selfie! It's been said that it's difficult to get a good selfie while wearing a spacesuit, but an astronaut snapped this one during a spacewalk on April 23 outside the International Space Station! Astronauts Steve Swanson and Rick Mastracchio completed a short spacewalk to replace a failed Multiplexer/Demultiplexer (MDM) back up computer. The backup computer failed April 11 after a routine health check by the Mission Control team in Houston.

Image Credit: NASA

#iss #exp39 #nasa #space #spacestation #station #selfie #globalselfie #earth #swanny

Doug N's profile photoPaula Chervinsky's profile photoSteven Gangichiodo's profile photoNick M Halliday's profile photo
What would make this selfie so epic would be if he did the classic "duck face". But never the less, this pic is bad ass. 
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The images in this quartet of galaxies represent a sample of composites created with X-ray data from NASA's Chandra X-ray Observatory, infrared data from the Spitzer Space Telescope, and optical data collected by an amateur astronomer. In these images, the X-rays from Chandra are shown in pink, infrared emission from Spitzer is red, and the optical data are in red, green, and blue. The two astrophotographers who donated their images for these four images -- Detlef Hartmann and Rolf Olsen -- used their personal telescopes of 17.5 inches and 10 inches in diameter respectively.

Starting in the upper left and moving clockwise, the galaxies are M101 (the "Pinwheel Galaxy"), M81, Centaurus A, and M51 (the "Whirlpool Galaxy"). M101 is a spiral galaxy like our Milky Way, but about 70% bigger. It is located about 21 million light years from Earth. M81 is a spiral galaxy about 12 million light years away that is both relatively large in the sky and bright, making it a frequent target for both amateur and professional astronomers. Centaurus A is the fifth brightest galaxy in the sky -- making it an ideal target for amateur astronomers -- and is famous for the dust lane across its middle and a giant jet blasting away from the supermassive black hole at its center. Finally, M51 is another spiral galaxy, about 30 million light years away, that is in the process of merging with a smaller galaxy seen to its upper left.

Image credit: X-ray: NASA/CXC/SAO; Optical: Detlef Hartmann; Infrared: NASA/JPL-Caltech
#chandra #nasa #universe #galaxy #space #xray #chandraxray
Alvaro Hernantes's profile photoАйбаниз Азимова's profile photoVincent Paul Pinto's profile photoAtheNINa Athena's profile photo
That look do cool
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Our radar imaging mission got underway in early April to collect data over targets in the Gulf Coast area of the southeastern United States. Our C-20A aircraft, a modified Gulfstream III, is carrying the Uninhabited Aerial Vehicle Synthetic Aperture Radar instrument in a specialized pod. Research during the deployment is covering a variety of topics, including volcanoes, glaciers, forest structure, levees, and subsidence. It is also providing vegetation data sets for satellite algorithm development. The volcanoes of Central and South America are of interest because of the hazard they pose to nearby population centers. A majority of the research will focus on gathering volcano deformation measurements. Surface deformation often precedes other signs of renewed volcanic activity.

This photo of volcanoes in Guatemala was taken over Central and South America. The conical volcano in the center is "Volcan de Agua." The two volcanoes behind it are, right to left, "Volcan de Fuego" and "Acatenango." "Volcan de Pacaya" is in the foreground.

Image Credit: NASA/Stu Broce

#nasa #volcano #science #earth #earthrightnow #guatemala
Antonio Pereira's profile photoKristina Thompson's profile photoGary Peters's profile photoVincent Paul Pinto's profile photo
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International Space Station Expedition 39 Flight Engineers Rick Mastracchio and Steve Swanson of NASA switched their spacesuits to battery power at 9:56 a.m. EDT, signifying the start of today's excursion.

Mastracchio is performing his ninth spacewalk in support of space station assembly and maintenance. He is wearing a spacesuit with red stripes. His helmet camera displays the number 20.

Swanson is conducting his fifth spacewalk. He is wearing a spacesuit with no stripes. His helmet camera displays the number 18.

During today's spacewalk, Mastracchio and Swanson will replaced a backup computer relay system located on the S0 truss that failed during testing April 11. The two spacewalkers will unhinge three bolts that secure the box to the truss, remove and temporarily stow it on a space station handrail and install the new one before packing up their tools and the failed unit and returning to the Quest airlock. 

If time permits, Swanson also will cut a lanyard draped across a Secondary Power Distribution Assembly door.

This is the 179th spacewalk in support of space station assembly and maintenance and is designated U.S. Spacewalk #26.

Here, Mastracchio exits the Quest airlock.
Axel Enuset's profile photoGrace Lucas's profile photoKarsten Wegmeyer's profile photoBill Buse's profile photo
+Eero Saarnivaara hola, disculpa mi ignorancia, pero que es kunnossa?? :)
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The team designing the parachute system for NASA’s Orion spacecraft has demonstrated almost every parachute failure they could imagine. But on April 23, they tested how the system would perform if the failure wasn’t in the parachutes.

Orion is the safest spacecraft ever built to carry humans, and its Launch Abort System can take a good deal of the credit for that distinction. In an emergency on the launch pad or during the early stages of ascent, it can activate in milliseconds to pull the crew to safety. Once it has pulled the crew away from the emergency, it’s up to the parachutes to bring them down for a safe landing.

“We hope we never have to use the parachutes this way,” said Chris Johnson, project manager for the parachutes. “We want to see them deploy after a successful mission every time. But we need to know they can perform in an emergency, too.”

In a pad abort or a low altitude launch abort, Orion’s three main parachutes would be called on to lower the crew module to the ground without the help of the two drogues that normally precede them. The parachute system won’t have as long to do the job since the spacecraft will be at much lower altitude than for a nominal reentry mission, and with the vehicle going slower, they won’t deploy as quickly. And on top of all of these factors, the crew module will be flying sideways when the parachutes deploy, instead of falling straight down as it does during reentry.

To simulate those conditions, a test version of Orion was dropped from a C-17 at 13,000 feet above the U.S. Army’s Yuma Proving Ground, with the main parachutes deploying soon after leaving the plane, before the capsule had a chance to straighten out. All the elements worked together and the parachutes reached a fully open state setting up a soft landing as expected. But the real value of the test will come with the data the engineers were able to gather from it.

“We wanted to record how long it took to inflate the parachutes in a launch pad abort scenario and collect data on how the different conditions affected the quality of the parachute deployment,” Johnson said. “With this test successfully completed, our next step is to dig into that information and use it to fine tune the launch abort trajectories for flight.”
In addition to the new test conditions, this was also the first time that the steel risers connecting the parachute lines to Orion were replaced with the textile risers that will be incorporated into future Orion spacecraft after Orion’s first flight this year. The new risers are lighter and more flexible – two qualities that will come in particularly handy when Orion is ready to carry humans into space.

While engineers continue to test Orion's parachutes for future missions, engineers at NASA's Kennedy Space Center in Florida continue to make progress on the Orion spacecraft being prepared for its December trip to space. Inside the Operations and Checkout Building high bay, the crew module is positioned on a special portable test chamber for multi-point random vibration testing. Accelerometers and strain gauges have been attached to Orion in various locations. During a series of tests, each lasting only 30 seconds, Orion is being subjected to gradually increasing levels of vibrations that simulate levels the vehicle will experience during launch, orbit and descent. The data will be reviewed to assess the health of the crew module. 

Orion’s first flight will launch an uncrewed capsule 3,600 miles into space for a four-hour mission to test several of its most critical systems, including its parachutes. After making two orbits, Orion will return to Earth at almost 20,000 miles per hour and endure temperatures near 4,000 degrees Fahrenheit, before its parachutes slow it down for a landing in the Pacific Ocean.

Z Binghui's profile photoakhtar nikmal's profile photoFaravahar Homayoun Ir's profile photoMuhammad Najmi Ahmad Zabidi's profile photo
There were risks with Apollo that were never made public. Flying this baby makes all the checks and balances very public. Please keep up the good work, NASA. As a citizen of Australia, I'd gladly donate to your funding. There are people who think that space exploration is a wasted cause. I'll spend MY money where I want.
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The NASA Digital Learning Network, the +U.S. Department of State's  Collaboratory, and +Google’s Connected Classrooms invite educators and students to their Mission Mars Virtual Field Trip. The online event will take place on Friday, April 25, 2014 from 2:00-3:00p.m. EDT, in conjunction with the 2014 USA Science & Engineering Festival in Washington, D.C. This virtual event will feature a special lesson about Mars rovers, along with interactions among NASA experts and students worldwide. Learn more at:
Faravahar Homayoun Ir's profile photoNunya Biznis's profile photoMiguel Hernandez's profile photoJamie JaysCom's profile photo
But we won't be able to get people back from Mars in another 30 years, so how many engineers and technicians are willing to spend the rest of their life trying to get home? How many launches to Mars would it take to make life sustainable just long enough to get a launch pad started? There had better be some crazy new propulsion technology coming along in the next ten years to make it possible to return within one lifetime. 
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NASA astronauts Steve Swanson and Rick Mastracchio completed a short spacewalk from the International Space Station this morning to replace a failed Multiplexer/Demultiplexer back up computer.

The backup computer failed April 11 after a routine health check by the Mission Control team in Houston. While the primary computer continues operating flawlessly NASA managers ordered Wednesday’s spacewalk repair to ensure redundancy on critical systems. The computer outage did not pose a risk to the six crew members aboard the space station.

While out for the spacewalk, Mastracchio snapped this image of the SpaceX Dragon cargo spacecraft attached to the ISS and shared it on Twitter following the conclusion of today's spacewalk.

Image credit: NASA
#spacex #iss #exp39 #nasa #space #spacestation #station

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NASA astronauts and Expedition 39 Flight Engineers Rick Mastracchio and Steve Swanson ended their one hour, 36 minute spacewalk at 11:32 a.m. EDT.

Mastracchio and Swanson successfully removed and replaced a failed backup computer relay system located on the space station’s truss, called a multiplexer-demultiplexer.

Ground controllers in Houston ran diagnostics on the newly installed unit and confirmed it is running. 

Mastracchio now holds 53 hours and 4 minutes during nine spacewalks. Swanson now holds 27 hours and 58 minutes during five spacewalks.

A total of 1,123 hours of spacewalking time has supported space station assembly and maintenance.
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Impressive and beautiful!
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NASA Television coverage of today's spacewalk is underway. The spacewalk is scheduled to begin at 9:20 a.m., but the crew is running a few minutes behind in their preparations.

NASA astronauts and Expedition 39 Flight Engineers Rick Mastracchio and Steve Swanson will venture outside the orbital complex to replace a failed backup computer relay system called a multiplexer-demultiplexer (MDM).

The backup MDM failed during routine testing April 11. The box is one of the station's external MDMs that provide commands to some of the space station's systems, including the external cooling system, solar alpha rotary joints and mobile transporter rail car.

Watch the spacewalk live on NASA Television or at:
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flying Laptops
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NASA's mission is to pioneer the future in space exploration, scientific discovery and aeronautics research. To do that, thousands of people have been working around the world and in space for more than 50 years, trying to answer some basic questions. What's out there in space? How do we get there? What will we find? What can we learn there -- or learn just by trying to get there -- that will make life better here on Earth?

NASA's work is diverse: proving flight technologies; creating capabilities for sustainable human and robotic exploration; exploring Earth, the solar system and the universe beyond; developing critical enabling technologies such as the space shuttle; and conducting science in orbit aboard the International Space Station. With NASA you can explore the universe and discover Earth.