Black Holes

WHAT ARE BLACK HOLES?

• Black holes are defined as places where gravity is so strong that light can't escape.
• They are formed after a massive star collapses.
• They can grow when two black holes collide.
• Their masses vary greatly.
• They are not holes.

History

• They were first predicted by Simon LaPierre in 1796.
• They were first observed by the Hubble Telescope in 1994.
• Albert Einstein's Theory of Relativity helped to explain the immense gravity of black holes.
• Carl Schwarschild determined a method of finding the size of black holes.

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