Group 5 Galaxies And Black Holes

The Black hole is a hole that the whole universe would get sucked in when there is the big bang. The black hole is a region of space time where gravity prevents anything, including light, from escaping.
The theory of general relativity predicts that a sufficiently compact mass will deform spacetime to form a black hole.
People don't know for shore that there really is a black hole, people prodict that everything would just get sucked into it when the time comes.

A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter.
A Galaxy looks a bit like the milky way (the galaxy which in which earth is contained).

By Niamh Flannery

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