Across the observable universe, galaxies advertise themselves in radio waves for familiar reasons-magnetic fields, cosmic ...

If so, why haven’t they said hello? The humble residents of this pale blue dot have been on a quest to find an alien civilisation for more than a century. First, it was the “canals” of Mars. Then ...

Whether alien life exists in the universe may be one of science's most important questions. Now, a leading British scientist says she has a definitive answer. Dame Maggie Aderin-Pocock, a space ...