The discovery suggests that parts of Mars may once have supported tropical-like climates, complete with heavy, sustained rainfall.

Linear gullies scratch the surface of sand dunes at Hellas Planitia on Mars. - NASA / JPL-Caltech / UArizona Strange, narrow channels threading through some of Mars' sand dunes have intrigued ...

NASA’s Mars Reconnaissance Orbiter (MRO) has taken a new and much clearer look at a confusing feature hidden deep under the Red Planet’s polar ice. In 2018, a different spacecraft picked up a bright ...

The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, ...

A Martian mystery that sparked years of debate — an alleged lake buried beneath miles of ice — now looks far less watery than scientists hoped. A new radar study from NASA’s Mars Reconnaissance ...

Mars has never looked more like a world in transition, with ice emerging as the quiet architect of its past and a crucial resource for its future. A new wave of NASA data is sharpening the picture of ...

CO₂ ice blocks on Mars may dig gullies as they slide and sublimate in the thin atmosphere. In lab experiments, scientists recreated these eerie, worm-like movements under Martian conditions. The ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. Mini-lightning strikes created by ...

Strange, narrow channels threading through some of Mars' sand dunes have intrigued scientists for years. These Martian features don't look like anything on Earth. Early theories proposed that flowing ...

A chance discovery by a NASA rover on Mars shows that the red planet has a form of lightning, which researchers had suspected for decades but... At long last, the mystery of lightning on Mars is ...