If aliens are watching Earth, they might be able to detect us from the radio signals we beam to Mars to control our rovers ...

Scientists used the Allen Telescope Array to search for alien signals near TRAPPIST-1. No signals were found, but valuable ...

Serpo aliens come from planet Serpo in Zeta Reticuli, using cloning tech to advance evolution but showing ruthless behavior.

While the SETI Institute is investigating interstellar space for extraterrestrial life, we may find it in our own cosmic ...

How to watch every Alien movie online. Thanks to Hulu, you can officially watch every Alien movie in one place — minus the ...