Stephen Hawking

The former NASA astronaut has told of a conversation he had with the renowned scientist.

The idea of wormholes was predicted by Einstein's theory of general relativity in 1916.

We cannot build a time machine today, but could we in the future?

The stark prediction is one of many outlined in the renowned theoretical physicist's new book.

The broadcast will "create a link" between Hawking's presence on Earth, his desire to visit space and his scientific explorations of the universe, his daughter said.

Astronomers will comb through millions of stars in the search.

Here's how to get tickets.

Hawking's family wanted "to support people going through a tough time."

"This is an enormous challenge," Hawking said in the film. "To leave Earth will take a global approach and everyone should join in."

Unimaginable brilliance in one area of endeavor does not translate into brilliance in all things.

Stephen Hawkin's burial site will pay homage to his contribution to science.

The fundamental laws of physics guarantee that every process that happens "forward in time" can also happen "backwards in time."

Hawking made four appearances on the show.

Hawking sought to unify the science of the incredibly large and the incredibly small.

Hawking was revered as much by other scientists as he was by the general public.

Marika Taylor, a professor of Theoretical Physics at the University of Southampton, reminisces about her time spent studying under the late Stephen Hawking.

Charity deals with overwhelming demand as people find ways to pay tribute to scientist after death.

Bit by bit, ALS robs its victims of their ability to move, speak, eat, and breathe. But he inspired me to focus on what I can do, rather than what my body can no longer do.

Hawking was diagnosed with ALS in 1963 at the age of 21.

"Technology," Hawking wrote, was being allowed to drive "ever-increasing inequality."

"My goal," Hawking said, "is a complete understanding of the universe."

Hawking died on Tuesday at 76 years old.

Renowned atheist author Richard Dawkins claims that a combination of similar last names and naive news producers has confused him for the late Stephen Hawking.

Stephen Hawking spoke with the help of a computer that synthesized his voice.

Astrophysicist Stephen Hawking died Wednesday, but his warnings about alien life and contact with extraterrestrials will continue to shape our search for alien contact in the universe.

"Quite amusing, Dr. Hawking."

"I like Chinese culture, Chinese food and above all Chinese women. They are beautiful," Hawking once said.

Redmayne won an Oscar for his portrayal of Hawking in the 2014 film "The Theory of Everything."

Millions have had their cosmic horizons widened by his best-selling books; and even more, around the world, have been inspired by a unique example of achievement against all the odds.

Scientists give their take on "a world-class scientist just having fun."