Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks.

Simply put, pi is a mathematical constant that expresses the ratio of a circle's circumference to its diameter. It figures ...

A blackboard at a U.K. university is believed to be the only one of its kind that has both Albert Einstein's scientific notations and his signature.

In November 1911, the French banker Albert Kahn revealed his plans for an undertaking that was global in scale and utopian in ...

The first direct visual evidence of the supermassive black hole in the centre of Messier 87 and its shadow. Event Horizon ...

Gene Hackman and his wife, Betsy Arakawa, were last seen in public in March of last year. The paparazzi filmed them outside a restaurant in New Mexico. They hadn't seen each other in more than 20 ...

A frail-looking Hackman can be seen using a walking cane as he stands, slightly bowed, beside his wife Betsy Arakawa in the photo snapped on March 28 last year. Gene Hackman and his wife Betsy ...