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Stories about: Berkely lab

Astronomers Find New Type of Supernova Supernovae are the huge explosions that accompany the end of a massive star's burning cycle. When the detonations occur, the outer layers over the former core are violently thrown away, and the core itself may collapse into a black hole, or into a neutron star, or simply a small, helium-based star, known as a wh... 6 November 2009 16:01 GMT