While you were sleeping, people just like you have actually begun to travel into space. We were invited behind Virgin Galactic’s velvet rope to meet them, and here is our advice: Get ready, and get in ...

Not everyone will be able to see the phenomenon, known as an annular eclipse, on Wednesday, though a partial solar eclipse ...

The new moon occurs on Wednesday, Oct. 2, at 2:49 p.m. Eastern Daylight Time (1849 GMT), according to the U.S. Naval Observatory, and for observers in the southeastern Pacific islands and southern ...

Physicists have identified new forms of γ-ray radiation created inside thunderclouds, and shown that levels of γ-ray production are much higher on Earth than previously thought.