Between government document dumps and a Spielberg movie about extraterrestrial life, it’s a good week to believe in aliens.

Earth plants could thrive under the light of an alien sun, according to a recent experiment. A team of astrobiologists planted garden cress seeds and cultured dishes of photosynthetic bacteria under ...

Aliens could, in theory, reach Earth but would never truly go home again, according to physicists who say Einstein's laws of ...