The groundbreaking British physicist and mathematician died at the age of 76 in March, after a lifelong battle against terminal motor neuron disease.

The award-winning physicist and "A Brief History of Time" author died after a long battle with ALS.

World-renowned physicist died peacefully at his home in Cambridge, England.

One of the galaxy's brightest minds, physicist Stephen Hawking, has died at age 76 and tributes have come in from all corners of the globe.

Here's "the most important pieces of advice" Stephen Hawking gave his children: "Look up at the stars," "never give up work" and love is "rare," so "don't throw it away."

Stephen Hawking, author of "A Brief History of Time," died at 76.

Stephen Hawking, author of "A Brief History of Time," died at 76.

The famed physicist shared his fatherly advice in this 2010 interview with Diane Sawyer.