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

The geology of the ocean floor is truly spectacular — perhaps even more than land geology. Unfortunately, it's really hard to study.

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

Dec 12, 2025 // Diplomatic Courier’s Stephanie Gull brings you weekly under–the–radar stories from around the world. This ...

What if Mars once had vast oceans and beaches? China’s Zhurong rover just revealed evidence buried under the Red Planet’s sand—inclined layers that could be fossilized shores. Explore how this ...

FAYETTEVILLE, Ark. — Researchers at the University of Arkansas have recently discovered geological formations on Mars that suggest the past presence of large rivers that once flowed into an ocean.

Astronomers have long been intrigued by the makeup of the asteroid belt’s largest body. When it was first spotted in 1801, Ceres appeared dry and rocky, its surface marked by craters and dents. For ...

Seismic data collected by NASA suggests the amount of water hidden in the red planet's crust would cover its surface in a global ocean. Evidence is mounting that a secret lies beneath the dusty red ...

Evidence is mounting that a secret lies beneath the dusty red plains of Mars, one that could redefine our view of the Red Planet: a vast reservoir of liquid water, locked deep in the crust. Mars is ...

After years of hunting for a lost ocean on Mars, a planetary scientist at UC Berkeley and others have finally dug up compelling evidence. The surface of Mars today is a mostly dry, frigid wasteland.