What’s Causing Those Landslides on Mars? Maybe Underground Salt and Melting Ice

Changes in Mar’s geography always attract significant scientific and even public attention.  A hope for signs of liquid water (and therefore life) is likely one of the primary driving forces behind this interest.  One particularly striking changing feature is the Recurring Slope Lineae (RSL) originally found by the Mars Reconnaissance Orbiter (MRO). Now, scientists at the SETI Institute have a modified theory for where those RSLs might develop – a combination of water ice and salt just under the Martian surface.

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Planet Mars, From Pole to Pole

Mars from pole to pole as imaged by the Mars Express orbiter. Image Credit: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

A new image from the ESA’s Mars Express Orbiter shows exactly how different regions in Mars are from one another. From the cloudy northern polar region all the way to the Helles Planitia down in the south, Mars is a puzzle of different terrain types. At the heart of it all is what’s known as the Martian dichotomy.

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