8 Haziran 2012 Cuma

NASA Image of the Day (Large): Throttle Up! J-2X Powerpack Test Sets Record

NASA Image of the Day (Large)
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Throttle Up! J-2X Powerpack Test Sets Record
Jun 8th 2012, 04:00

During a record-breaking test on June 8, 2012, engineers throttled the J-2X powerpack up and down several times to explore numerous operating points required for the fuel and oxidizer turbopumps. The results of this test will be useful for determining performance and hardware life for the J-2X engine turbopumps. The J-2X engine will power the upper stage of the evolved NASA's Space Launch System, an advanced heavy-lift rocket that will provide for human exploration beyond Earth's orbit. The test was conducted at NASA's John C. Stennis Space Center in south Mississippi. Pratt & Whitney Rocketdyne is developing the J-2X engine for NASA's Marshall Space Flight Center in Huntsville, Ala. Image Credit: NASA/SSC

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NASA Image of the Day (Large): Evaluating the Advanced Crew Escape Suit

NASA Image of the Day (Large)
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Evaluating the Advanced Crew Escape Suit
Jun 8th 2012, 04:00

NASA astronaut Rex Walheim participated in an evaluation of the Advanced Crew Escape Suit (ACES) in the Active Response Gravity Offload System, or ARGOS, at the Johnson Space Center on Tuesday, June, 5, 2012. The modified ACES suit is fully integrated with Orion life support systems and will be used by crews for ascent and entry, as well as light extra vehicular activities, commonly referred to as spacewalks. The ARGOS system allows an astronaut to be suspended and have full freedom of motion, simulating a microgravity environment. During this test, Walheim evaluated the amount of dexterity the suit would provide for various tasks including translating across handrails, working with tools and entering a spacecraft hatch. Image Credit: NASA/Radislav Sinyak

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7 Haziran 2012 Perşembe

NASA Image of the Day (Large): Enterprise Moves to Intrepid

NASA Image of the Day (Large)
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Enterprise Moves to Intrepid
Jun 7th 2012, 04:00

Atop a barge on Wednesday, June 6, 2012, the space shuttle Enterprise was towed on the Hudson River past the Statue of Liberty on its way to the Intrepid Sea, Air and Space Museum, where it will be permanently displayed, . Image Credit: NASA/Bill Ingalls

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6 Haziran 2012 Çarşamba

NASA Image of the Day (Large): Enterprise on the Hudson

NASA Image of the Day (Large)
The latest NASA "Image of the Day" - Large Version.
Enterprise on the Hudson
Jun 6th 2012, 04:00

Enterprise, the prototype for the space shuttle fleet, arrived at the Intrepid Museum in New York City on Wednesday, June 6, 2012, to the museum's Space Shuttle Pavilion, which will open to the public on July 19. Thousands however, got a sneak peek as they watched the shuttle move up the Hudson River. In this image, the shuttle is being towed by barge from a port in Jersey City, N.J. to the Intrepid, a retired World War II aircraft carrier that is now used to house aerospace and maritime exhibits. Image Credit: NASA/Bill Ingalls

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NASA Image of the Day (Large): Venus Transit From the Space Station

NASA Image of the Day (Large)
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Venus Transit From the Space Station
Jun 6th 2012, 04:00

This image of the 2012 Venus Transit was taken by NASA Astronaut Don Pettit from aboard the International Space Station on June 5, 2012. Pettit, who had the foresight to bring a solar filter for his camera, captured several images of the June 5 transit, downloading them in almost real-time. He photographed the image through the European Space Agency-built "cupola", removing the scratch panes to get crisp, clear images. Image Credit: NASA

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NASA Image of the Day (Large): NASA's SDO Captures 2012 Venus Transit

NASA Image of the Day (Large)
The latest NASA "Image of the Day" - Large Version.
NASA's SDO Captures 2012 Venus Transit
Jun 6th 2012, 04:00

This image from NASA's Solar Dynamics Observatory shows Venus as it nears the disk of the sun on June 5, 2012. Venus's 2012 transit will be the last such event until 2117. Credit: NASA/SDO, AIA

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5 Haziran 2012 Salı

NASA Image of the Day (Large): Coronal Hole on the Sun

NASA Image of the Day (Large)
The latest NASA "Image of the Day" - Large Version.
Coronal Hole on the Sun
Jun 5th 2012, 04:00

This image of a coronal hole on the sun bears a remarkable resemblance the 'Sesame Street' character Big Bird. Coronal holes are regions where the sun's corona is dark. These features were discovered when X-ray telescopes were first flown above the earth's atmosphere to reveal the structure of the corona across the solar disc. Coronal holes are associated with 'open' magnetic field lines and are often found at the sun's poles. The high-speed solar wind is known to originate in coronal holes. The solar wind escaping from this hole will reach Earth around June 5-7, 2012. Image Credit: NASA/AIA

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