The history of water on Mars • The history of water on Mars

The history of water on Mars


The history of water on Mars Today’s Video of the Day from the European Space Agency describes how data from the ExoMars Trace Gas Orbiter is providing new insight into water loss on Mars, which also sheds light on the planet’s climate evolution.

The liquid water that once flowed across the surface of Mars is now mostly locked up in ice caps and buried underground. However, water loss is still taking place even today.

The ExoMars Trace Gas Orbiter is following the vertical path of water through the atmosphere and tracking its changing isotopic composition. This data can be used to estimate water loss on Mars.  Water on Mars. However, it seems Mars once had liquid water flowing on the surface. This would make large areas like Earth’s oceans. There are a number of signs of water on or under the surface, now or in the distant past. These include stream beds, polar caps, spectroscopic measurement, eroded craters.

Video Credit: ESA 

By Chrissy Sexton, Staff Writer

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