Can anything go faster than light speed?

Light can reach its maximum velocity, which is as far as we know, because a vacuum is devoid of particles cannot be surpassed. Light travels through water at a 75% light speed. The particles can travel faster than light if they move faster than 0. 75c in water.

What can escape a black hole?

Anything outside this surface, including astronauts, rockets, or light Can escape from the black hole. The black hole's strong pull toward the center of the surface makes it impossible for anything to escape.

Can you touch dark matter?

When we look out into the universe, we don't know what we're looking at for the most part. In fact, we can't even see most of what we're looking at – that's because the majority of the universe is made up of mysterious, practically invisible dark matter.

Does time stop in a black hole?

Time stops at the horizon of a black hole, but only as seen by someone outside the hole. The signal will never reach the outside observer because it will be redshifted at the event horizon. Someone falling into a black hole would not stop.

Is it hot in a black hole?

Black holes are not warm on the inside It's very hot outside. The internal temperature of a black hole with the mass of our Sun is around one millionth of a degree above absolute zero.