Imagine the Universe!
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The explosion is called a supernova.

Gravity squeezes the left over pieces together until it is smaller than a pencil point.

Only very, very big stars can become black holes.

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Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

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Acting Project Leader: Dr. Barbara Mattson
All material on this site has been created and updated between 1997-2012.

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