“Buried!” –Mars’ Ancient North Pole Ice Sheets Found

Mars North Pole

 

Layers formed when ice accumulated at the poles during past ice ages on Mars. But each time the planet went through a warming cycle, a remnant of the ice caps became covered by sand, which protected the ice from solar radiation and prevented it from dissipating into the atmosphere. If melted, the newly discovered polar ice would be equivalent to a global layer of water around Mars at least 1.5 meters (five  feet) deep.

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