New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth could be overlooking prime evidence of alien intelligence.

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.

The European-led LIFE mission aims to use spacecraft in formation to look for biosignatures.

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...

SETI might not have succeeded in finding alien life yet because space weather around other stars could be disrupting aliens' attempts to send radio messages out, according to a new study that tries to ...