Stephen Hawking took to a zero-gravity jet in 2007

71-year-old professorStephen Hawking urges continuing space exploration. He said, humans would survive another 1,000 years “without escaping beyond our fragile planet.”

Above: Stephen Hawking took to a zero-gravity jet in 2007 to experience weghtlessness.

Hawking was diagnosed with the neurological disorder 50 years ago while a student at Cambridge University.

He spent his career on decoding the Universe, working on black holes and the origin of matter. He wrote several books, including “A Brief History of Time” published in 1988, which was sold 10 million copies worldwide.

via washingtonpost