NASA spacecraft spots stunning flow of ice on Mars

There's movement on Mars.
By Mark Kaufman  on 
A NASA illustration showing the Mars Reconnaissance Orbiter flying above polar ice on Mars.

Mars, a world that once gushed with water, is today 1,000 times drier than Earth's driest desert. Yet some ice still flows, slowly, on the Martian ground.

NASA's Mars-orbiting satellite, the Mars Reconnaissance Orbiter, carries a powerful camera called the High Resolution Imaging Experiment (HiRISE) that captures rich imagery of the Red Planet's surface (it's the "most powerful camera ever sent to another planet," the HiRISE team explains). Recently, planetary scientists used HiRISE to snap an image of a glacier-like "icy flow," taken from 184 miles above Mars' surface. Frozen ice doesn't only exist in the frigid Martian poles.

"The surface of Mars is littered with examples of glacier-like landforms," Mike Mellon, a Mars geologist and co–investigator of the HiRISE project, explained online. "While surface ice deposits are mostly limited to the polar caps, patterns of slow, viscous flow abound in many non-polar regions of Mars."

The image below was taken at 37 latitude, a "temperate" region of Mars.

The HiRISE camera aboard the Mars Reconnaissance Orbiter captured a detailed image of an ice flow on Mars.
The HiRISE camera aboard the Mars Reconnaissance Orbiter captured a detailed image of an ice flow on Mars. Credit: NASA / JPL-Caltech / UArizona

Want more science and tech news delivered straight to your inbox? Sign up for Mashable's Light Speed newsletter today.

Ice flow on Mars

This ice is moving slowly. It tends to form on rocky debris inside valleys and craters.

"As ice flows downhill, rock and soil are plucked from the surrounding landscape and ferried along the flowing ice surface and within the icy subsurface," Mellon explained. "While this process is gradual, taking perhaps thousands of years or longer, it creates a network of linear patterns that reveal the history of ice flow."

Even when the ice melts or evaporates away, the rock flows remain, leaving telltale signs of Mars' diminished, but still active, geologic activity.

Still, this ice is a far cry from Mars' days as a water world, when lakes sprawled over the land and streams ran through river deltas. Today, NASA's Perseverance rover is scouring the river delta in Mars' Jezero Crater for possible hints of past, primitive life — should any have ever existed.

Topics NASA

Mashable Image
Mark Kaufman

Mark is an award-winning journalist and the science editor at Mashable. After communicating science as a ranger with the National Park Service, he began a reporting career after seeing the extraordinary value in educating the public about the happenings in earth sciences, space, biodiversity, health, and beyond. 

You can reach Mark at [email protected].

Recommended For You

How a solar eruption would impact astronauts on the moon and Mars

NASA's dropping off a space package from 63,000 miles high

Conan interviews fan who brutally rejected his offer of a selfie

The best dating sites and apps for serious relationships

More in Science
Video and audio calls on X, formerly Twitter, will be for paying subscribers only

ChatGPT rolls out voice and image capabilities

Target Circle Week is getting a huge head start on Amazon's Prime Big Deal Days this October

You can ask Windows 11 AI for info inside your phone's texts. Here's how it works.
By Kimberly Gedeon

Apple admits there's an iPhone 15 setup bug. Here's how to fix it.

Trending on Mashable
Wordle today: Here's the answer and hints for September 26

NYT Connections today: See hints and answers for September 25

NASA rover finds place where extraordinary events occurred on Mars

Webb telescope just made tantalizing find on ocean world Europa

The biggest stories of the day delivered to your inbox.
This newsletter may contain advertising, deals, or affiliate links. Subscribing to a newsletter indicates your consent to our Terms of Use and Privacy Policy. You may unsubscribe from the newsletters at any time.
Thanks for signing up. See you at your inbox!