Stephen Hawking has died at the age of 76, his family has said
The British theoretical physicist was known for his groundbreaking work with black holes and relativity, and was the author of several popular science books including A Brief History of Time.
His children, Lucy, Robert and Tim, said: "We are deeply saddened that our beloved father passed away today.
"He was a great scientist and an extraordinary man whose work and legacy will live on for many years."
They praised his "courage and persistence" and said his "brilliance and humour" inspired people across the world.
Remembering Stephen Hawking
My Goal is simple, It is a complete understanding of the universe, why it is as it is and why it exists at all. He has inspired a whole generation of scientists and non—scientists with his work on black holes and relativity. He was a giant of physics and a brilliant example of courage and passion for knowledge. He is now traveling through time and the universe. Bon voyage