When astronomers first cataloged some of the closest orbiting rocky exoplanets, they wrote them off as bare, airless cinders, ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

In the South China Sea, near the Paracel Islands, the aqua-colored waters of an expansive shallow reef platform suddenly ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

An alternative is to write Avatar novels, going into significant detail on the world and telling the stories of the sequels. ...

A Carnegie-led team of astronomers detected the strongest evidence yet of an atmosphere around a rocky planet beyond our ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

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

The consequences will be catastrophic. For the Antarctic ice sheet to melt almost completely, a rise in average global ...

The Kepler-22b reveal flips the storyline of the series. What started as a story about Earth going through a bizarre ...

New research suggests Titan instead may hold deep layers of ice and slush more akin to Earth's polar seas instead of a buried ...

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may look more like slush.