National Astronomical Observatory of Japan

Decoding Light to Uncover the Mystery of Cassiopeia A's Birth

| Science

Cassiopeia A

Cassiopeia A (Cas A), a supernova remnant located 11,000 light years away, is the second youngest known remnant in the Milky Way Galaxy. Although very well studied, Cas A has kept its origins hidden through the veils of time ? until now. A group of international astronomers from the Subaru Telescope, Max Planck Institute of Astronomy (MPIA), and University of Arizona's Seward Observatory came together to finally determine the history behind Cas A.


More info: Subaru telescope web page