Astronomy: the James Webb intercepts its first supernova
A bright light detected by NASA’s James Webb Telescope (JWST) three billion light-years from Earth is believed to be the first observation of a supernova. The stellar explosion occurred in the galaxy, SDSS. J141930.11+5251593, where JWST took images showing the light from an object becoming fainter than a five-day arc. The potential supernova was captured …