Can we see black holes from the Earth?

18 November 2007

Question

Can we see black holes from the Earth?

Answer

Yes, we can but not directly. We can see the effect they have.Basically a black hole is a star that's died, that's collapsed. Unbeknownstto many people many stars are in fact double stars or binaries. The deadstar, the collapsed star can form a black hole. The gravitational fieldsare intense. It sucks material from its companion star and forms what wecall an accretion disc around it. The accretion disc emits x-rays and weknow of many stars that are x-ray stars and these are black holes.

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