Cassiopeia A Supernova – Expanding
January 13, 2009
The Cassiopeia A supernova remnant seen expanding over the course of seven years. credit: NASA
Topics:
Technology Internet, Stars, Supernova remnants, Astronomy, National Aeronautics and Space Administration, Supernova remnant G1.9+0.3, Cassiopeia, Supernova, Supernova remnant, Science, Cassiopeia A, Cassiopeia constellation, Nature, Supernovae
