An image provided by NASA is a false-color picture showing the many sides of the supernova remnant Cassiopeia A. Astronomers have unearthed secrets from the grave of the star that blasted apart in a supernova explosion long ago. The discovery represents the first time astronomers have been able to resurrect the life history of a supernova remnant in our own galaxy. Cassiopeia A is the burnt-out corpse of a massive star that died 11,300 years ago.
Sunday, June 29, 2008
The Many Sides of the Supernova
An image provided by NASA is a false-color picture showing the many sides of the supernova remnant Cassiopeia A. Astronomers have unearthed secrets from the grave of the star that blasted apart in a supernova explosion long ago. The discovery represents the first time astronomers have been able to resurrect the life history of a supernova remnant in our own galaxy. Cassiopeia A is the burnt-out corpse of a massive star that died 11,300 years ago.
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