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Rocky layer cakes on the red planet

These layered hills, seen in this false-colour image of a portion of Arabia Terra on Mars, may possibly have a watery origin. Arabia Terra is a highland region in Mars’ northern hemisphere, dating back to the red planet’s Noachian geological era, around four billion years ago.


Martian ice deposit holds as much water as Lake Superior

Researchers using NASA’s Mars Reconnaissance Orbiter have determined that frozen beneath a region of cracked and pitted plains on the Red Planet there lies about as much water as fills Lake Superior, largest of the Great Lakes. Scientists examined part of Mars’ Utopia Planitia region with the orbiter’s ground-penetrating instrument, revealing a deposit more extensive in area than the state of New Mexico.


Fossilised rivers suggest warm, wet ancient Mars

Extensive systems of fossilised riverbeds have been discovered on an ancient region of the Martian surface on a northern plain called Arabia Terra, supporting the idea that the now cold and dry Red Planet had a warm and wet climate about 4 billion years ago, according to University College London-led research.