Stephen Hawking is a famous scientist that is world renowned. The only problem is that no ones knows exactly what he did! This video briefly explains what made Stephen Hawking so famous and which topics about the universe he explains. His main work dealt with black holes. While learning about black holes he discovered a singularity, a point in which no natural laws exist. These conclusions eventually led to the idea of the Big Bang Theory, which explains the creation of humanity. Many of the common scientific ideas that we have be taught since childhood came from one man studying a black hole, Stephen Hawking.