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Monday, 27 May 2019

Scientists found the first geological evidence that Mars once was full of water

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News24xx.com - Scientists from Utrecht University in the Netherlands have revealed the first geological evidence of an interconnected system of ancient lakes, far below the surface of the planet Mars. Five of them are considered to contain minerals that are important to sustain life.

Previously, scientists believed on the surface of Mars there were strong signs that large amounts of water which once had existed on the planet. Then, in 2018, the Mars Express expedition detected a puddle of water beneath the south pole of Mars.



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"Ancient Mars is a watery world but when the planet's climate changed, the water went inside the surface to form puddles and groundwater" said leader of the University of Utrecht, Netherlands, Francesco Salese. "We trace water because its scale and role are still under debate, and we find the first geological evidence of a groundwater system on Mars"

Salese and a number of colleagues explored 24 closed craters in the northern hemisphere of Mars, the depth of the crater ranged from 4,000 to 4,500 meters. The depth of this crater indicates that it has been filled with inundation and water flow which then recedes over time. They believe because of the discovery of a feature in the crater that can only be formed by water.

The feature includes carving a channel in the crater wall, carving a curved channel allegedly formed when the surface of the water rises and falls. The jagged terrace inside the crater wall, formed by a pool of water and sediment deposits shaped like a fan formed by the flow of water.

 

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