Are black holes really black?

Answer 1

Steven Hawking has recently changed his view that no "information" could escape a black hole. Current thinking is that as matter falls into a black hole, some radiation / information escapes across the event horizon. So according to current thinking black holes are not completely "black"

Answer 2

I read once that some black holes do appear to radiate light, although they actually don't. The book said that sometimes, a particle and an antiparticle will spontaneously form, then annihilate with each other. If a photon and an antiphoton spawn near a black hole, sometimes the antiphoton gets "eaten," leaving a real photon which appears to have been emitted by the black hole.

However, that book was written more than ten years ago, so it could easily have been proven wrong by now.

Answer 3

Yes, it is because even light can't neither escape from nor travel through them. It is theoretically proved that a celestial object could shrunk and become a black hole by this formulae, R= (GM)/c^2. since black holes absorb or pulls everything which gets near to it, so we are not able to see anything left, including light. Thus, they are black in colour and they are really black

Answer 4

The gravitational pull in black-holes is so great that light cannot escape from them, Truth is man has never seen a black-hole but can tell that it is present by the way celestial body's near it react.

Answer 5

I've read that Black Holes are transparent to the naked eye. You won't see the black hole itself, but from a distance you'll see its effects. As you approach the singularity in your spaceship, light is going to get bent and twisted around. Stars will appear to be where they are not, and they'll swirl around you like you're under a giant lens. If you're getting 'warmer', the visual distortions will get worse, and visa versa. It would be wise not to let your eyes estimate how close is too close, and let the computer do the navigating.