NASA’s James Webb Space Telescope (JWST) captured a sensational image of a supernova remnant created by a stellar explosion 340 years ago (as seen from Earth). The remnant, known as Cassiopeia A, is the youngest known remnant from an exploding, massive star in our Milky Way.
While the image from JWST is not the first to be taken of Cassiopeia
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Author: Tim Sweezy
