Signals from a distant world have pushed the search for alien life out of science fiction and into the realm of testable ...

Webb telescope discovered a bizarre exoplanet with carbon atmosphere, no hydrogen, orbiting a super-dense spinning star.

Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a dramatic planetary breakup.

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

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

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

Many tipping elements are now well-known: the Amazon rainforest, the Greenland Ice Sheet, the Atlantic Meridional Overturning ...

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

Mars once had sprawling river systems that rivaled major watersheds on Earth, and scientists have now identified the biggest ...

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 ...

Scientists using NASA’s James Webb Space Telescope have found a unique planet in another star system that’s shaped like a lemon. The lopsided Jupiter-style planet is so bizarre that it may blur the ...