plain old ordinary gravity, just lots of it
Depending on the size of the black hole, they may or may not have:* An enormous mass; * An enormous gravitational pull (depending how close you are, of course); * An enormous density (depending how you define density; if you take the volume of the event horizon, a supermassive black hole actually has less density than water).
everything they can pull in everything even other stars and light itself
A black hole sucks anything and everything that is in its gravitational pull.
In the case of a black hole, the gravitational pull of the black hole is greater than the speed of light. Which means that the light is not fast enough to escape the gravitational pull of the black hole.
No human has ever come near a black hole. If one did, the intense gravitational pull of the black hole would pull them in and tear them to atoms, long before they reached the event horizon.
Black hole is a location in space that possesses so much gravity, nothing can escape from its pull. Yes, Super massive black hole is the largest black hole.
As soon as It's born. The gravitational force of the Black Hole will pull matter into it.
No, light cannot escape from a black hole due to its strong gravitational pull.
No, neutrinos cannot escape from a black hole due to its strong gravitational pull.
A star in which light cannot escape because of its immense gravitational pull at its surface is called a black hole.
As the planet is approaching a black hole due to the immense gravitational pull on the objects surrounding it, the planet revolves around the black hole until it falls into the black hole.
Since whit holes only exist mathematically, a black hole could not pull in a white hole.