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Evolution, 3-D animation of Cassiopeia A

Videos chart old supernova remnant, give 3-D perspective

By Ron Cowen

- More than 2 years ago

LONG BEACH, Calif. — Two new videos reveal the dynamic nature of the supernova remnant Cassiopeia A — the remains of a star believed to have exploded 330 years ago. Researchers unveiled the videos on January 6 at the winter meeting of the American Astronomical Society.

REMNANTS OF CASSIOPEIA A (2D) | The evolution of the supernova remnant Cassiopeia A is shown by combining X-ray images taken by the Chandra X-ray Observatory in January 2000, February 2002, February 2004 and December 2007.