Theoretical physicist Stephen Hawking has died at 76

Renowned physicist Stephen Hawking sits in front of a presentation image during a press conference in London, Monday, July 20, 2015. Renowned physicist Stephen Hawking and Russian tech entrepreneur Yuri Milner are pushing the search for extraterrestrial life into higher gear. The pair said Monday the $100 million "Breakthrough Initiatives" program funded by Milner will harness computer power as never before in a search of the heavens. (AP Photo/Matt Dunham)

LONDON (AP) — Stephen Hawking, whose brilliant mind ranged across time and space though his body was paralyzed by disease, has died, a family spokesman said.

“He was a great scientist and an extraordinary man whose work and legacy will live on for many years,” his children Lucy, Robert and Tim said in a statement.

The best-known theoretical physicist of his time, Hawking wrote so lucidly of the mysteries of space, time and black holes that his book, “A Brief History of Time,” became an international bestseller, making him one of science’s biggest celebrities since Albert Einstein.

Even though his body was attacked by amyotrophic lateral sclerosis, or ALS, when Hawking was 21, he stunned doctors by living with the normally fatal illness for more than 50 years.. provides commenting to allow for constructive discussion on the stories we cover. In order to comment here, you acknowledge you have read and agreed to our Terms of Service. Commenters who violate these terms, including use of vulgar language or racial slurs, will be banned. Please be respectful of the opinions of others. If you see an inappropriate comment, please flag it for our moderators to review. Note: Comments containing links are not allowed.

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