WASHINGTON -- Renowned astrophysicist Stephen Hawking died at his home in Cambridge, England early Wednesday morning. Hawking was a professor of mathematics at the University of Cambridge. He was an Honorary Fellow of the Royal Society of Arts (FRSA), a lifetime member of the Pontifical Academy of Sciences, and a recipient of the Presidential Medal of Freedom, the highest civilian award in the United States.

Stephen Hawking, a professor of mathematics at the University of Cambridge, delivers a speech entitled "Why we should go into space" during a lecture that is part of a series honoring NASA's 50th Anniversary, Monday, April 21, 2008, at George Washington University's Morton Auditorium in Washington. Credits: NASA/Paul Alers

“Today, the world lost a giant among men, whose impact cannot be overstated. Our condolences go out to the family and friends of Stephen Hawking," said acting NASA Administrator Robert Lightfoot.

“Stephen’s breakthroughs in the fields of physics and astronomy not only changed how we view the cosmos, but also has played, and will continue to play, a pivotal role in shaping NASA’s efforts to explore our solar system and beyond.

“Along with groundbreaking and inspiring work came another attribute that made Stephen a hero not just to younger generations, but also to his peers. A longtime friend to NASA, Stephen was a passionate communicator who wanted to share the excitement of discovery with all.

“His loss is felt around the world by all he inspired with his work and his personal story of perseverance.”