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Whatamp;#39;s inside a black hole? We recently received this question from a reader of our Spacing Out newsletter, and the answer is one that astronomers all over the world would love to have. We donamp;#39;t actually know the answer because we canamp;#39;t see inside the black hole. Thereamp;#39;s a distance around a black hole called the event horizon and we just canamp;#39;t see inside of it. Anything that gets closer to the black hole than the event horizon doesnamp;#39;t make it back out, including light. And if the light from inside canamp;#39;t get back out, we canamp;#39;t observe it. But weamp;#39;re pretty sure that whatamp;#39;s inside the black hole is everything that fell into it. All of the dust particles and the gas atoms and the bits of any passing stars that got ripped apart. And itamp;#39;s actually probably very bright in there because thatamp;#39;s a lot of material in a very small amount of space, which tends to make things glow. But again, weamp;#39;r