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

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year, the possibility continues to grow. But what would happen if we actually ...

One of Britain’s most prominent space scientists believes humanity may finally get an answer to one of its oldest questions ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

The search for life beyond Earth is a key driver of modern astronomy and planetary science. The U.S. is building multiple major telescopes and planetary probes to advance this search. However, the ...

As many as 200 worlds beyond our solar system discovered by astronomers may be larger than estimated, which could influence the search for extraterrestrial life. That's the theory of a team of ...

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

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Saturn's largest moon, Titan, has long been of interest to NASA because they believe it could host an ocean underneath its ...