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Not since Carl Sagan has a scientist captured the world’s fancy like British cosmologist Stephen Hawking ... flight is the first step towards space travel. A&S: Of all the unanswered mysteries ...

Famed physicist Stephen Hawking took gravity to its ultimate ... which states that time travel into the past is forbidden ...

In it, Hawking offers a clear explanation of the scientific theories of today — from time travel to general relativity to the creation of the universe.

Beloved scientist Stephen Hawking, who overcame a debilitating disease to continue probing the mysteries of the universe, died Wednesday at the age of 76. Hawking authored numerous books ...

In the 20th century, Professor Stephen Hawking made a huge difference to the ... Stephen published a book called A Brief History Of Time in 1998. Then in 2007, he wrote a book for children.

In March, Professor Stephen Hawking died. For fifty-five years, he defied a disease that should have killed him in five. The time spent since his diagnosis was not just about survival – he ...