On Mars, just as on Earth, gravity can send material tumbling down steep slopes — and the results can be stunningly pretty, as shown in this photograph NASA released today.
The image reveals an area of Mars called Cerberus Fossae, which scientists believe is the youngest fault system on the planet. Here, geologists see two different types of landslides happening.
First, there are larger boulders, which appear light blue against the dark blue background in the image. Scientists believe these boulders come from the uppermost layer of bedrock, the thin layer of light blue near the top of the image.
Then, there are narrow, dark lines across the blue rock, which scientists believe also mark downslope movement, simply of smaller particles of rock.
In both cases, the processes are formally known as mass wasting. The phenomenon intrigues scientists, who hope to eventually understand how it plays out differently across Mars' surface and over the Martian seasonal cycle.
An instrument called the HiRISE camera, which is part of NASA's Mars Reconnaissance Orbiter, captured the image on Jan. 24. The spacecraft has been in orbit since 2006, and scientists hope that its camera will be able to continue working at the Red Planet for years to come.
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