
James Webb Space Telescope studies wreckage of supernova explosion
A new image from the James Webb Space Telescope (JWST) shows in stunning detail the wreckage of a cataclysmic supernova explosion. The supernova remnant, known as Cassiopeia A (Cas A), formed about 340 years ago from our perspective here on Earth. This makes the 10-light-year-wide Cas A one of the youngest clouds of ...