Final Frontier...

Black Holes?

A black hole is an object with a gravitational field so powerful that a region of space becomes cut off from the rest of the universe – no matter or radiation, including visible light, that has entered the region can ever escape। The lack of escaping electromagnetic radiation renders the inside of black holes (beyond the event horizon) invisible, hence the name। However, black holes can be detectable if they interact with matter, e।g. by sucking in gas from an orbiting star. The gas spirals inward, heating up to very high temperatures and emitting large amounts of light, X-rays and Gamma rays in the process while still outside of the event horizon. Black holes are also thought to emit a weak form of thermal energy called Hawking radiation.