We have sad news to report this afternoon, as word comes out that TV and film icon Leonard Nimoy has died at 83.

Of course, Nimoy is best known as Star Trek's steady and logical Mr. Spock. Since the original 1960s TV series, he's made guest appearances on dozens of movies and TV shows, including a great guest spot on The Big Bang Theory.

He was rushed to the hospital last week with severe chest pains.

We'll keep you updated on this breaking news story.