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Gazing at Earth [NASAの本日の一枚]
| NASA Image of the Day | |
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| Gazing at Earth | Mon, 19 Apr 2010 00:00:00 EDT |
| The STS-131 crew snapped this image as space shuttle Discovery remained docked with the International Space Station. The Leonardo Multi-Purpose Logistics Module can be seen in Discovery’s payload bay. Earth’s horizon and the blackness of space provide the backdrop for the scene. Image Credit: NASA | |
国際宇宙ステーションにドッキングされているスペースシャトル
「ディスカバリー」。
日本の宇宙航空研究開発機構宇宙飛行士の山崎直子さん
を乗せてもうすぐ帰還ですね。
夢宇民PaPa
Group Portrait「国際宇宙ステーションのきぼうの実験室での記念写真」 [NASAの本日の一枚]
| NASA Image of the Day | |
 | |
| Group Portrait | Fri, 16 Apr 2010 00:00:00 EDT |
| The crews of STS-131 and Expedition 23 gathered for a group portrait in the Kibo laboratory of the International Space Station while space shuttle Discovery was docked at the station. STS-131 crew (in light blue shirts) are commander Alan Poindexter, pilot James P. Dutton Jr., and mission specialists Clayton Anderson, Rick Mastracchio, Dorothy Metcalf-Lindenburger, Stephanie Wilson and Japan Aerospace Exploration Agency astronaut Naoko Yamazaki. Expedition 23 crew Commander Oleg Kotov, cosmonauts Mikhail Kornienko and Alexander Skvortsov, Japan Aerospace Exploration Agency astronaut Soichi Noguchi, and NASA astronauts T.J. Creamer and Tracy Caldwell Dyson. Image Credit: NASA | |
国際宇宙ステーションのきぼうの実験室での記念写真ですね。
ここで問題、日本の宇宙航空研究開発機構宇宙飛行士の山崎直子
さんはどこでしょう。
夢宇民PaPa
Galaxy Cluster Has Two 'Tails' to Tell [NASAの本日の一枚]
| NASA Image of the Day | |
 | |
| Galaxy Cluster Has Two 'Tails' to Tell | Fri, 22 Jan 2010 00:00:00 EST |
| Two spectacular tails of X-ray emission have been seen trailing behind a galaxy using the Chandra X-ray Observatory. A composite image of the galaxy cluster Abell 3627 shows X-rays from Chandra in blue, optical emission in yellow and emission from hydrogen light -- known to astronomers as 'H-alpha' -- in red. The optical and H-alpha data were obtained with the Southern Astrophysical Research (SOAR) Telescope in Chile. At the front of the tail is the galaxy ESO 137-001. The brighter of the two tails has been seen before and extends for about 260,000 light years. The detection of the second, fainter tail, however, was a surprise to the scientists. The X-ray tails were created when cool gas from ESO 137-001 (with a temperature of about ten degrees above absolute zero) was stripped by hot gas (about 100 million degrees) as it travels towards the center of the galaxy cluster Abell 3627. What astronomers observe with Chandra is essentially the evaporation of the cold gas, which glows at a temperature of about 10 million degrees. Evidence of gas with temperatures between 100 and 1,000 degrees Kelvin in the tail was also found with the Spitzer Space Telescope. Galaxy clusters are collections of hundreds or even thousands of galaxies held together by gravity that are enveloped in hot gas. The two-pronged tail in this system may have formed because gas has been stripped from the two major spiral arms in ESO 137-001. The stripping of gas is thought to have a significant effect on galaxy evolution, removing cold gas from the galaxy, shutting down the formation of new stars in the galaxy, and changing the appearance of inner spiral arms and bulges because of the effects of star formation. Image Credits: X-ray: NASA/CXC/UVa/M. Sun et al; H-alpha/Optical: SOAR/MSU/NOAO/UNC/CNPq-Brazil/M.Sun et al. | |
久しぶりのNASAからの転載です。
by 夢宇民PaPa
サイバー攻撃、 マイクロソフト「IEのぜい弱性悪用された」 [NEWS]
CO2を天然ガスに転換して温暖化対策、海洋研究開発機構 [NEWS]
Jupiter's Moons[NASAの本日の一枚] [NASAの本日の一枚]
| NASA Image of the Day | |
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| Jupiter's Moons | Fri, 08 Jan 2010 00:00:00 EST |
| On Jan. 7, 1610, Galileo Galilei's improvements to the telescope enabled humanity to see Jupiter's four largest moons for the first time. Io, Europa, Ganymede and Callisto--the so-called Galilean satellites--were seen by the Long Range Reconnaissance Imager on the New Horizons spacecraft during its flyby of Jupiter in late February 2007. The images have been scaled to represent the true relative sizes of the four moons and are arranged in their order from Jupiter. Io is notable for its active volcanism, which New Horizons studied extensively. On the other hand, Europa's smooth, icy surface likely conceals an ocean of liquid water. New Horizons obtained data on Europa's surface composition and imaged subtle surface features, and analysis of these data may provide new information about the ocean and the icy shell that covers it. New Horizons spied Ganymede from 2.2 million miles away. Ganymede, the largest moon in the solar system, has a dirty ice surface cut by fractures and peppered by impact craters. New Horizons' infrared observations may provide insight into the composition of the moon's surface and interior. Scientists are using the infrared spectra New Horizons gathered of Callisto's ancient, cratered surface to calibrate spectral analysis techniques that will help them to understand the surfaces of Pluto and its moon Charon when New Horizons passes them in 2015. Image Credit: NASA/JHU-APL/Southwest Research Institute | |
夢宇民PaPa
史上最古の銀河を発見、NASA・ハッブル宇宙望遠鏡 [NEWS]
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