rjxie 发表于 2003-9-3 12:22

[酷图] 星系超新星残骸——IC443

Galactic Supernova Remnant IC 443
Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT
Explanation: About 8000 years ago, a star in our Galaxy exploded. Ancient humans might have noticed the supernova as a temporary star, but modern humans can see the expanding shell of gas even today. Pictured above, part of the shell of IC 443 is seen to be composed of complex filaments, some of which are impacting an existing molecular cloud. Here emission from shock-excited molecular hydrogen is allowing astronomers to study how fast moving supernova gas affects star formation in the cloud. Additionally, astronomers theorize that the impact accelerates some particles to velocities near the speed of light. Supernova remnant IC 443 is also known to shine brightly also in infrared and X-ray light.

ak49 发表于 2003-9-3 18:17

像一团乱糟糟的彩色水草。。。。汗。。。。。。。

小绿人 发表于 2003-9-5 10:59

好壮观！
看着这些图片，感觉心胸都宽阔了许多！

HDZ 发表于 2003-9-5 23:02

好漂亮！
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