The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting ...

Astronomers have discovered a distant planet that they think could be completely covered in water, making it a prime target for future study by the James Webb Space Telescope.. The planet is ...

Scientists investigated how much water Mars once had, before the planet lost it to space and elsewhere. They found the now-desert world could have had a water content similar to Earth.

The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, ...

Astronomers have discovered a nearby exoplanet that may prove to be the first such world covered in water.. TOI-1452 b is an exoplanet slightly larger and more massive than Earth about 100 light ...

Traces of ancient streams wind across its surface, hinting at a time when water covered much of the planet. While some of this water is now locked deep underground, the fate of the rest has ...

The images and data being collected are already raising new questions about how the Martian surface was changing billions of ...

Living on this planet, covered in water or not, would feature relatively lightning-fast years as the planet orbits its sun every 11 days. NASA said that because the star it orbits is smaller and ...

LP 791-18 d orbits a red dwarf it is tidally locked to, meaning the planet doesn’t have a day and night cycle like Earth. Instead, one part of LP 791-18 d is constantly scorched by sunlight ...

K2-18b is considered a Hycean exoplanet – as opposed to a rocky planet – due to its potential to possess a hydrogen-rich atmosphere and surface covered in ocean water.. Since it was discovered ...

Mars is an intriguing planet. Once believed to be abundant in water, the atmosphere has long since thinned, leaving the planet a shell of what it once was.