It's the last clearly observed supernova in the Milky Way, Gassel said.
IFLScience on MSN
Watch 25 Years Of A Supernova Expanding Into Space Squeezed Into This 40-Second NASA Video
“Supernova explosions and the elements they hurl into space are the lifeblood of new stars and planets,” said Brian Williams of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and principal ...
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