Pinterest • The world’s catalogue of ideas

Black hole is a big region in space, with such incredible gravitational pull that nearby objects and even light cannot escape it. Around this hole, there is an invisible surface, usually known as point of no return, as the objects near that area have no chances to return and are sure to be absorbed by the black hole.

2
2
from About.com Education

What Exactly Is a Black Hole?

1
from Owlcation

What is a Black Hole? Do Black Holes Even Exist?

A black hole is a region of spacetime centred on a point mass called a singularity. A black hole is extremely massive and thus has an immense gravitational pull, which is in fact strong enough to prevent light escaping from it.

1
from the Guardian

What is a black hole?

Stephen Hawking has chosen black holes as the subject of his BBC Reith Lectures. Here’s why these mysterious objects remain at the forefront of astronomers’ attention

What Sonic Black Holes Say About Real Ones: Can a fluid analogue of a black hole point physicists toward the theory of quantum gravity, or is it a red herring? ...

1