"Sesame Street" is 50 years old this week. Here are some of the strangest celebrity guests from the show's five decades, from Mel Gibson to Lassie.
Scientist studied tiny, transparent fish to learn more about sleep.
Who you gonna call? A rational scientist to help explain things.
In a revealing interview, Michael Stipe opens up about his (brilliant, painful, confounding) past. Just don't expect an R.E.M. reunion.
Twenty-five years ago, R.E.M. confronted mortality and loss on its most beloved album.
R.E.M.'s 'Monster' is loud, ugly, and remarkably underrated. The band's singer looks back.