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exactly the speed of light, same as always. however it is doppler shifted. even very low frequency radio waves falling toward the black hole, by the time they hit the event horizon and vanish forever have blue shifted to become gamma rays. similarly even gamma rays rising away from the area immediately above the event horizon, by the time they escape have red shifted to become very low frequency radio waves.
What else can I help you with?
Can the moon be sucked up by the black hole?
Yes, everything can be sucked in to a black hole, even light
How do you survive in a black hole?
you dont light gets sucked into a black hole. Light!!!! so you have no chance. Additionally being exposed to spac would make you explode
Has an astronaut ever been sucked into a black hole?
No, it is not possible for an astronaut to be sucked into a black hole. Black holes are extremely far away and astronauts do not travel close enough to them. Additionally, the gravitational pull of a black hole is so strong that no known force or technology could overcome it.
Is there anything black holes can't suck up?
There are hypotheses about so called 'virtual particles' that may travel faster than speed of light, and hence are not sucked up by Black Holes. Also, Black Holes cannot suck another bigger Black Hole, when they meet a bigger one, they get sucked up rather.
Why can't light escape from a black hole?
The gravity casued by the black hole is so strong that even light is sucked into it
Can light move through black holes?
no, it just gets sucked into it
Why are black holes difficult to locate?
Because they give off absolutely no light and no radiation. The only radiation is X-Rays from the stars being sucked in.
What happens to sound and light when you approach a black hole?
It is sucked into the black hole to a point that is infinitely small.
Can magnetism be sucked into a black hole?
Everything that is slower than the speed of light (approximately 186,000 miles per second) gets sucked in. Since nothing is faster than the speed of light, magnetism can definitely be sucked in
What object reflects or absorbs all light?
A black hole's gravitational pull is so strong, not even light can escape it. so, essentially, it's like the light is being sucked up into a black void.
Why are you not in danger of being sucked into a black hole?
Because the nearest one is 1600 light years away. Even if someone traveled at 80% of the speed of light towards there, it would be two millenia before s/he got there.
Can light be sucked into a black hole?
Yes, the gravitational strength of black holes is so powerful that it can "suck in" light, even though it travels at 186,000 miles per second.
