James Webb Space Telescope discovers one of the earliest ‘truly gargantuan’ supernovas ever seen
https://www.space.com/James-Webb-Space-Telescope-earliest-distant-supernova
James Webb Space Telescope discovers one of the earliest ‘truly gargantuan’ supernovas ever seen
https://www.space.com/James-Webb-Space-Telescope-earliest-distant-supernova
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If the star that exploded was 20 solar masses, it is possible that the remnant was, and maybe still is, a neutron star. 20 solar masses is it about the top of the scale above which the remnant becomes a black hole