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Astronomy版 - Galactic Graveyard: 1,000 Relics of Dying Stars[z
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发帖数: 298
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By Robert Roy Britt
Senior Science Writer
posted: 07:00 am ET
11 April 2002
Astronomers have found the remnants of a thousand dead and dying stars in the
southern part of the Milky Way Galaxy they described as a galactic graveyard.
The findings, from a new sky survey, roughly doubles the known number of so-
called planetary nebulae. These are a poorly named class of objects that
represent the relics of stars that have made their dying gasps by casting
waves of gas and dust into space to create o
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相关话题的讨论汇总
话题: dying话题: stars话题: relics话题: graveyard话题: galactic