supernova
2 stories
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worldHubble Captures 25 Years of Crab Nebula Expansion
NASA's Hubble Space Telescope reveals dramatic motion in the Crab Nebula, a 1,000-year-old supernova remnant, showing filaments expanding at 3.4 million mph powered by a central pulsar.
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worldStar Collapses Directly Into Black Hole, Bypassing Supernova
Astronomers may have witnessed a star collapse directly into a black hole without a supernova, a rare event challenging existing theories of stellar death.