From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Explore the origins, questionable evidence, and the lack of proof supporting extraterrestrial visitations in this eye-opening examination of history and ...

Breakthrough Listen searched for technosignatures from interstellar comet 3I/ATLAS but found no unusual signals or behavior ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

Space mining tech and robotic prospecting are unlocking extraterrestrial resources, reshaping future energy, manufacturing, ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

Vladimir Putin jokes that interstellar comet 3I/ATLAS is Russia’s ’secret weapon,’ meant for use under extreme cases ...

Long before scientists discovered that other stars in the universe host their own planetary systems, humanity had ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.

A new analysis of Saturn's moon Titan that reduced the odds of a subsurface liquid ocean has increased the chances of ...