In the supernova remnant Cassiopeia A, three jets rich in material synthesized in the innermost layers of the progenitor star reveal the secrets of the processes that occur in a supernova immediately after core collapse. Understanding the phenomena that follow the collapse of a massive star core is one of the most important goals of modern astrophysics. These processes
A new theoretical study shows that the filamentary structure observed in the supernova remnant Cassiopeia A (Cas A) is a direct consequence of the processes that occurred in the progenitor star immediately after core collapse. Supernovae are among the most energetic explosive events in the Universe. Yet, despite their immense brightness, they convert only about 1% of their energy
