Question

define black hole?????​

Answer 1

Answer:

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 because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes

Explanation:

Super massive black holes and candidates

• 4C +37.11 (this radio galaxy is believed to have binary supermassive black holes)
• AP Lib.
• S5 0014+81 (Said to be a compact hyperluminous quasar.