A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong since issue has been smashed into a little space. This can happen when a star is failing miserably.
Since no light can get out, people can't see dull holes. They are intangible. Space telescopes with extraordinary instruments can empower find to dull openings. The outstanding devices can see how stars that are close dim holes act particularly as opposed to various stars.