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For the first time, astronomers watched a massive star disappear and transform into a black hole without the usual supernova explosion. The discovery in the Andromeda galaxy could help scientists find countless hidden black holes across the universe. #
Scientists discovered three dwarf galaxies dancing together in a rare gravitational trio near the Andromeda Galaxy, revealing new secrets about how small galaxies survive in cosmic neighborhoods. The finding shows that even in the vast universe, companions stick together.
For the first time, astronomers may have watched a massive star collapse into a black hole without exploding. The star, once visible from backyard telescopes in the Andromeda galaxy, simply faded into darkness over several years.