Lord Martin Rees argues that if humans do find intelligent alien life, it will be artificial not biological.
An unusual signal from the direction of Proxima Centauri previously thought to be possible alien technology was actually just broken Earth technology, a new study suggests.
Astronomers say strange radio signals around old, inactive stars may be the shimmering auroras of four alien worlds.
The search for alien life should broaden its horizons a bit, a new study suggests.
Two aircrafts flying over Canada reported a "bright green UFO" that disappeared into the clouds on July 30.
A multi-institutional research team will seek evidence of technologies crafted by intelligent alien civilizations — living and extinct.
Methane tends to only be made by biological life, so scientists are wondering if the source is from alien microbes.
Aliens will most likely be robotic and guided by AI—so we'll need our own AI to figure them out.
A new survey reveals that most Americans believe in intelligent extraterrestrial life and do not feel threatened by the appearance of UFOs.
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