With 'Project Hail Mary' opening in theaters, here are several essential films that explore the strange, high-stakes ...

These three exoplanets are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by a mysterious smog.

Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond our planet.

Winter constellations shine defiantly in the face of spring as galaxy season and zodiacal light beckon.

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have ...

A hazy, ultra-light “super-puff” planet, Kepler-51d, is hiding its secrets and challenging how scientists understand planet formation.

The history of Earth is written on the great tablets of tectonic plates. The motions of plates shaped land masses, formed ...

Scientists discover a nearby planet with a molten interior and sulfur-rich atmosphere, L 98-59 d, revealing a possible new ...

Portal Space Systems is partnering with Paladin Space on a commercial service that would round up and dispose of orbital debris.

Astronomers have detected strange "wobbles" in the light curve of a super bright supernova, hinting that a magnetar was born inside the extreme stellar explosion.

Scientists have found the oldest direct evidence for tectonic motion on Earth by more than half a billion years ...