Once anything crosses the black hole's event horizon it will not be able to escape.
Your category is the answer, that thing is black hole
No, radio waves cannot escape a black hole because the intense gravitational pull of a black hole prevents any form of electromagnetic radiation, including radio waves, from escaping its event horizon.
Escaping a black hole and surviving its immense gravitational pull is currently considered impossible according to our current understanding of physics. The gravitational force of a black hole is so strong that not even light can escape from it, making it extremely dangerous for any object or person to try to escape.
Because black holes are of such density that even light can no escape them, they don't radiate any light and are black.
A black hole is called a black hole because due to its density and therefore intense gravity, nothing, not even light, can escape it. Though it has extreme mass, it is not a light source, and it will not reflect any light, so it appears as a "black hole" in the universe.As a black hole has massive gravity, light from objects behind it will "bend" around the black hole and an observer will see what is called gravitational lensing. The effect of the lensing will be greatly pronounced because a black hole deforms space-time dramatically. A black hole is a point in space where something is, but because the "thing" that is there generates extreme gravity, it will not be visible under any conditions. It was natural to apply the term black hole to this phenomenon.Because, the huge gravitational forces inside the black hole ensure nothing - not even light - can escape.
Dont hold me to this, but any thing that goes into a black hole does not come out. In suggesting that you reapear, you would be be refering to a wormhole
Perfect black would be the inability for any light at all to reflect off the surface. A black hole is black because light cannot escape the gravitational pull.
The very outside part of a black hole when "feeding" is called the Accretion Disc. when a black hole is not devouring a star the outside part becomes the Event Horizon.
You 'see' things when light (photons) are reflected off a surface, and absorbed by your retina. A black hole's gravitational field is so strong, that the escape velocity exceeds the speed of light. Any photons within a certain radius will be unable to escape. Since no photons are being emitted, the black hole appears black and gives off no light.
A black hole has an 'event horizon'. The event horizon is the threshold at which point there are no longer any paths leading away from the center of the black hole. This means that the gravitational forces are so strong that nothing can escape their pull once past the event horizon, including light energy.
No. Or at least, no more so than any other form of electromagnetic radiation can.
We can't see a black hole because it does not emit any light. Its gravitational pull is so strong that even light cannot escape from it, making it invisible to the naked eye.