Thursday, August 27, 2009

Supernova

A stellar explosion is called:

Supernova
It is the end time situation of a star which is going to be exploded. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months. During this short interval, a supernova can radiate as much energy as the Sun could emit over its life span.

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