Black holes could be a key to understanding the universe, but they remain shrouded in mystery. So what are black holes—and how do scientists detect them?
00:00 - The mystery of black holes 00:39 - What is a black hole? 01:54 - What are the different types of black holes? 03:12 - Can anything escape a black hole? 04:52 - How do scientists detect black holes? 06:27 - How did scientists create a real image of a black hole? 07:35 - Why black holes appear to defy physics 08:57 - Why are black holes important?
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