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

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 ...

The exoplanet, dubbed PSR J2322-2650 b, has a helium-and-carbon atmosphere, something researchers say they've never seen ...

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

Did NASA discover city lights on an alien planet? This video explores the implications and details of the findings that ...

Three decades ago, in 1995, humankind discovered the first planet beyond the borders of our solar system. It's called 51 Pegasi b, and it spins around its main-sequence star (meaning not unlike our ...

Putin was questioned about the origins of 3I/ATLAS at an event before Christmas, and his response was surprising, as NASA ...

NASA Planetary Protection Officer Lisa Pratt is worried about Elon Musk having sent a Roadster into orbit.

With 3I/ATLAS days away from making its closest approach to Earth, agencies worldwide are conducting the largest and most ...