For decades, Europa has been cast as one of the Solar System’s best bets for alien biology, a frozen world hiding a global ...

Radio telescopes have long scanned quiet patches of sky for a lone, artificial-sounding ping, but a growing body of research ...

A test model of the Perseverance rover, designed to explore the surface of Mars, sits in a garage at NASA’s Jet Propulsion ...

2025 MN45 isn't the overall spin-rate record holder. Astronomers have found a number of small asteroids — those just a few ...

Over half of the exhaust methane from lunar spacecraft could end up contaminating areas of the moon that might otherwise ...