Cassiopeia A: Death Becomes Her
By : NASA/JPL-Caltech/STScI/CXC/SAO
This false-color image from three of NASA's Great Observatories provides one example of a star that died in a fiery supernova blast. Called Cassiopeia A, this supernova remnant is located 10,000 light-years away in the constellation Cassiopeia. At the center of this orb, visible only as a tiny turquoise...