Astronomers propose finding alien civilizations by searching for unusually cold stars that could be surrounded by Dyson swarms—energy-harvesting structures first proposed by Freeman Dyson.

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...

Aliens: "Sorry, you're cutting out!" The post Something May Be Scrambling Alien Messages, NASA-Funded Research Finds appeared ...

Welcome to Mamdaniville, where octogenarian veterans are pushed onto train tracks by demented illegal alien career criminals.

Earthlings, brace yourselves: the galaxy may be emptier than your last Tinder date. According to a new study, any alien ...

The Fermi Paradox asks a simple but unsettling question: if the universe is so vast, why haven’t we found evidence of alien ...

It is one of the most famous questions in science, and it was asked, as legend has it, over lunch. Enrico Fermi, the ...

Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the ...

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures?

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder ...

Scientists are scrambling to explain why interstellar visitor 3I/ATLAS is carrying life's chemical building blocks at concentrations never before seen, and it makes its final pass through our cosmic n ...

In a talk at South by Southwest, Steven Spielberg revealed his own thoughts about the existence of space aliens while discussing his upcoming "Disclosure Day." ...