JWST Delivers A Fantastic New Image Of Supernova Remnant Cassiopeia A
Before a massive star explodes as a supernova, it convulses and sends its outer layers into space, signalling the explosive energy about to follow. When the star does explode, it sends a shockwave out into its own ejected outer layer, lighting it up as different chemical elements shine with different energies and colours. Intermingled with Read more about JWST Delivers A Fantastic New Image Of Supernova Remnant Cassiopeia A[…]