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

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

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

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 ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

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

One hundred twenty light-years from us, there is an exoplanet that can potentially host life. It's called K2-18b, and it's ...

Imagine a planet orbiting the largest known star, Stevenson 218. This video explores the tantalizing scientific possibility ...

Pocock, a space scientist at University College London and BBC presenter, predicts alien life will be found by 2075 but ...

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

Samus Aran, the science fiction protagonist in the Metroid series, is arguably Nintendo’s most mysterious character. She ...

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may look more like slush.