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发帖数: 1994 | 1 V838 Light Echo: The Movie
Credit: H. Bond (STScI), A. Henden (USNO Flagstaff), Z. Levay (STScI), et al., ESA,
NASA
Explanation: What caused this outburst of V838 Mon? For reasons unknown, star V838
Mon's outer surface suddenly greatly expanded with the result that it became the brightest star
in the entire Milky Way Galaxy. Then, just as suddenly, it faded. A stellar flash like this has
never been seen before -- supernovas and novas expel matter out into space. A |
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