Physicist Stephen Hawking dies at 76 in England

Physicist Stephen Hawking, seen in this April 21, 2008 file photo, delivers a lecture entitled "Why We Go into Space" as a part of a lecture series honoring NASA's 50th Anniversary, at the George Washington University in Washington, has died at his home in Cambridge, England early March 14, 2018. He was 76. Photo by Kevin Dietsch/UPI