The Collapse and Explosion..

Woosley, Stan
Weaver, Tom
The collapse and explosion of a massive star is one of nature’s grandest spectacles. For sheer power nothing can match it. During the supernova’s first 10 seconds. . . it radiates as much energy from a central region 20 miles across as all the other stars and galaxies in the rest of the visible universe combined. . . It is a feat that stretches even the well-stretched minds of astronomers.
Scientific American
The Great Supernova of 1987 (p. 32)
Volume 261, Number 2, August 1989

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