In 2015, a piece of equipment at an observatory in the US moved one quintillionth (10-18) of a meter. This tiny movement was ...

The U2 frontman spent the past few years reexamining his life and career. Now he’s back with new projects, new music—and a fresh sense of urgency to change the world.

Stephen Hawking had a clear, simple answer when asked what came before the Big Bang. Hawking, who died at the age of 76 in ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.