Sam Smith, Katy Perry, And More Celebrities Pay Tribute To Stephen Hawking

World-renowned physicist Stephen Hawking died early Wednesday morning. He was 76 years old. His children issued a statement given to The Guardian:  “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. His courage and persistence with his brilliance and humour inspired people across the world.”

Celebrities mourned the death of Hawkings on social media overnight and in the early morning hours.