Renowned British physicist Stephen Hawking has died at the age of 76. A spokesman made the announcement for the family. In a statement, Hawking's children - Lucy, Robert, and Tim - said, in their own words, "he was a great scientist and an extraordinary man whose work and legacy will live on for many years."
Hawking was the first to set out a theory of cosmology, explained by a union of the general theory of relativity, and quantum mechanics. His death comes on what turns out to be a special date---March 14th, the birthday of another prestigious scientists Albert Einstein, who also died at 76. Using Einstein's theory of general relativity, Hawking proved the Big Bang was triggered by a so-called "singularity".