This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

NASA’s Perseverance rover has uncovered what may be the strongest evidence yet of ancient life on Mars. Inside a ...

A US pilot claims his aircraft was surrounded by a 'jellyfish' swarm before being shot down over Iran, sparking debates on ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

SETI researchers found no alien signals on interstellar object 3I/ATLAS, but the study refines future searches and expands ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

PARIS: An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and ...

A Pentagon strategist with 46 years of national security experience argues that disciplined inquiry, not public certainty, is ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...