Yeh, that's what I mean. You can only tell a black hole exists because all the light around it gets sucked in, but because you can't see it, how do all these scientists know it's actually growing in size, and not just compressing?
Yeh, that's what I mean. You can only tell a black hole exists because all the light around it gets sucked in, but because you can't see it, how do all these scientists know it's actually growing in size, and not just compressing?
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