宇宙関連
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Titan's Surface Organics Surpass Oil Reserves On Earth
An artist's imagination of hydrocarbon pools, icy and rocky terrain on the surface of Saturn's largest moon Titan. Credits: Steven Hobbs
by Staff Writers
Laurel MD (SPX) Feb 14, 2008
Saturn's orange moon Titan has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth, according to new Cassini data. The hydrocarbons rain from the sky, collecting in vast deposits that form lakes and dunes.
Arecibo Observatory Astronomers Discover First Near-Earth Triple Asteroid
2001 SN263 has now been revealed as the first near-Earth triple asteroid ever found. Photo courtesy Arecibo Observatory.
by Blaine P. Friedlander Jr.
Ithaca NY (SPX) Feb 15, 2008
Once considered just your average single asteroid, 2001 SN263 has now been revealed as the first near-Earth triple asteroid ever found. The asteroid -- with three bodies orbiting each other -- was discovered this week by astronomers at the radar telescope at the National Science Foundation's (NSF) Arecibo Observatory in Puerto Rico.
Possible Progenitor Of Special Supernova Type Detected
Possible detection of a binary star system that was later destroyed in a supernova. Image Credit: X-ray: NASA/CXC/MPE/R. Voss et al. Optical: NASA/GSFC/Swift
by Staff Writers
Boston MA (SPX) Feb 15, 2008
Using data from NASA's Chandra X-ray Observatory, scientists have reported the possible detection of a binary star system that was later destroyed in a supernova explosion. The new method they used provides great future promise for finding the detailed origin of these important cosmic events.
The Spinning Magnet Of A Sun-Like Star
The magnetic field of the sun-like star tau Bootis has flipped its north and south poles, the first time this has been observed in a star other than our sun. The shortened cycle of this event may be due to interactions with its nearby massive planet. Credit Karen Teramura (UH IfA).
by Staff Writers
Manoa HI (SPX) Feb 15, 2008
An international group of astronomers that includes the University of Hawaii's Evgenya Shkolnik reported today that they have discovered that the sun-like star tau Bootis flipped its magnetic field from north to south sometime during the last year.
by mayufuru
| 2008-02-15 19:57