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Ring beholds a delicate flower, Spitzer reveals SPITZER PHOTO RELEASE Posted: February 14, 2005
A planetary nebula is a shell of material ejected from a dying star. Located about 2,000 light years from Earth in the constellation Lyra, the Ring Nebula is also known as Messier Object 57 and NGC 6720. It is one of the best examples of a planetary nebula and a favorite target of amateur astronomers. The "ring" is a thick cylinder of glowing gas and dust around the doomed star. As the star begins to run out of fuel, its core becomes smaller and hotter, boiling off its outer layers. The telescope's infrared array camera detected this material expelled from the withering star. Previous images of the Ring Nebula taken by visible-light telescopes usually showed just the inner glowing loop of gas around the star. The outer regions are especially prominent in this new image because Spitzer sees the infrared light from hydrogen molecules. The molecules emit infrared light because they have absorbed ultraviolet radiation from the star or have been heated by the wind from the star. |
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Columbia Report A reproduction of the official accident investigation report into the loss of the space shuttle Columbia and its crew of seven.  Choose your store:U.S. - U.K. - E.U. - Worldwide  Apollo 14 DVD  In January of 1971, Apollo 14 launched on an ambitious mission to land in the Fra Mauro highlands, a region of the moon more challenging than previous explorations. The flight captured in this DVD set.Choose your store:U.S. Apollo 11 Mission Report  Apollo 11 - The NASA Mission Reports Vol. 3 is the first comprehensive study of man's first mission to another world is revealed in all of its startling complexity. Includes DVD!Choose your store:U.S. - U.K. - E.U. - Worldwide STS-115 patch  The official crew patch for the STS-115 mission of space shuttle Atlantis to resume orbital construction of the International Space Station.Choose your store:U.S. - U.K. - E.U. - Worldwide |
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NASA Administrator Sean O'Keefe, in his final press conference appearance, presents the 2006 budget information and answers reporters' questions on Hubble, the exploration plan and shuttle return-to-flight. (86min 37sec file)
Expedition 11 commander Sergei Krikalev, flight engineer John Phillips and Soyuz taxi crewmember Roberto Vittori hold a pre-flight news conference in Houston. Topics included problems with the shuttle safe haven concept. (42min 23sec file)
The last Lockheed Martin Atlas 3 rocket launches from Complex 36 at Cape Canaveral Air Force Station at 2:41 a.m. EST carrying a classified spy satellite cargo for the U.S. National Reconnaissance Office. This movie follows the mission through ignition of Centaur. (5min 30sec file)
A camera mounted on the Centaur upper stage captured this dramatic footage of the spent first stage separation, deployment of the RL10 engine nozzle extension, the powerplant igniting and the rocket's nose cone falling away during launch.