The news of the acclaimed scientist and best-selling author's death was announced on Tuesday.
The iconic physicist is survived by his three children.
The musician died on Monday night at his home in South Carolina of what appeared to be natural causes.
ET can confirm that the musician died on Monday, Feb. 12 at his home in Lebanon, Tennessee.
The actor's rep confirmed he died on Sunday in Chicago after suffering a short illness.
The former 'Glee' star has died at the age of 35.
A rep for the Irish musician confirms O'Riordan died 'suddenly' in London, England on Monday.
'Dick Van Dyke' Star Rose Marie Dead at 94
The singer died suddenly on Monday.
ET can confirm the rising star has died. Pete Wentz, Sam Smith and Bella Thorne all took to social media to mourn.
ET has learned the 91-year-old 'peacefully passed away from natural causes at his home, the Playboy Mansion, surrounded by loved ones.'
ET's first interview with Hugh Hefner was in 1982.
Christopher, best known for playing Father John Mulcahy, died on Saturday.
The 'Star Wars' actress went into cardiac arrest on a flight from London to Los Angeles last week.