Despite being so elusive, neutrinos are produced in abundance in some of the most violent events in the universe. One of ...
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Failing to go supernova, an Andromeda supergiant star quietly collapsed into a black hole
A supergiant star, lying 2.5 million light-years away in the Andromeda galaxy, ended its life without a bang and then turned itself quietly into a black hole. Unlike massive stars that explode as ...
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