The first sign of possible extraterrestrials detected in the cosmos didn't come in the form of little green aliens flying around in saucer-shaped spacecraft. In fact, the life that could be – emphasis ...

This shift is grounded in how scientists interpret the atmospheric data of distant planets, especially chemical markers like ...

Scientists from the University of Cambridge announced this week what they believe is the strongest evidence so far of extraterrestrial life. The place in question is not within our solar system, but ...

Hints of life may have just flickered into view from a world 124 light-years away, and the signal is coming through the James Webb Space Telescope. The exoplanet K2-18b, a so-called Hycean candidate ...

A team of astronomers have detected what they call the most promising signs to date of a possible biosignature, or signs of past or present life linked to biological activity, on an exoplanet named K2 ...

An ocean world that’s teeming with microbes — and who knows what other kinds of life — is currently the best explanation for some chemical signatures that the James Webb Space Telescope has spotted in ...

A team of astronomers announced on April 16, 2025, that in the process of studying a planet around another star, they had found evidence for an unexpected atmospheric gas. On Earth, that gas – called ...

Using NASA's James Webb Space Telescope (JWST), researchers have found signs of what could finally settle the age-old question: Are we alone in the universe? Nearly 124 light years away from Earth, on ...

K2-18b resides within the habitable zone of its star, making the presence of liquid water and thus life possible. Using the James Webb Space Telescope, researchers detected molecules in K2-18b's ...