A wave signal from space validates Hawking’s prediction that the area of an event horizon should never decrease.
In 1974, Stephen Hawking bet Kip Thorne a subscription to Penthouse over whether a recently discovered cosmic object was a black hole. He lost, and we tried to find out if he ever paid up.
Rainer Weiss, Kip Thorne, and Barry Barish are named for leading the effort to detect gravitational waves.
Such Thorne–Żytkow objects promise to open up a whole new side to the universe that we’ve never known.