Long before modern space exploration, scientists proposed astonishing ways to contact extraterrestrials—from giant burning ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Anyway, 35 years later, our favourite cyborg has returned and we couldn't be happier to see him. Terminator 2: Judgment Day ...

While no imminent asteroid threats have been found for Earth, Chinese scientists discussed two ways to deflect a space rock ...