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What's The BIGGEST, WIDEST SUPERNOVA?

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Posted by Kenny Thornton on July 24, 2002 04:43:52 UTC

SUPERNOVA: An explosion of a massive star.
(The explosion is SO BRIGHT that it briefly outshines the galaxy!)
Supernova Remnants (SNR's) should keep expanding for hundreds of thousands of years, according to physical equations. Yet there aren't any very old, widely expanded (STAGE 3) SNR's, and very moderately old (STAGE 1) ones in our galaxy or in it's satellite galaxies, the Magellanic Clouds. This is just what you would expect for young galaxies that haven't existed long enough for wide expansion.

< Kenny, 16

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