There is a silence in the night sky that has bothered me for as long as I can remember. ” That observation, attributed to American physicist Richard Feynman, captures a tension many people feel when ...

NASA's chief has just upended the timeline for the future moon missions as conspiracy theorists continue to claim something found on the lunar surface is being hidden.

While aliens in science fiction hop between planets on vast spaceships, scientists say real-life extraterrestrials might take ...