On August 15, 1977, the Big Ear observatory in Ohio picked up an unusually intense radio signal. The signal was so unique that it prompted astronomer Jerry Ehman to draw a red circle around it and scribble the word ‘Wow!’ ...
Lunar exploration is undergoing a renaissance. Dozens of missions, organised by multiple space agencies—and increasingly by commercial companies—are set to visit the Moon by the end of this decade. Most of these will involve small robotic spacecraft, but NASA’s ambitious ...
