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

The Perseverance rover has been exploring Jezero Crater for years, but it's never found an otherworldly object quite like ...

Using JWST, scientists discovered PSR J2322-2650b — a carbon-rich, lemon-shaped exoplanet orbiting a pulsar — challenging ...

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 ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

NASA’s latest images from Mars show a rock that looks less like a random boulder and more like something deliberately carved, a sculpted shard standing alone on the dusty plain. The discovery has ...

WASHINGTON — An Earth-sized planet in its star's habitable zone has been discovered in data from NASA’s Kepler space telescope. NASA says the newly found exoplanet is the closest to Earth in size and ...

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. For months, 3I/ATLAS has attracted plenty of attention – and become the source of bizarre alien spaceship conspiracies – as it ...