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Mars and humans on the Red Planet, this is making headlines again. Why? Because water ice is believed to be as little as an inch below the surface of Mars.

A new paper published in Geophysical Research Letters will help by providing a map of this water ice below the surface of Mars, according to a National Aeronautics and Space Administration (Nasa) report.

Nasa will only zero down on a landing site on Mars once it has thoroughly anaslysed where the water ice will be on the Red Planet.

The Nasa report said that any human missions to Mars will have to harvest what’s already available for drinking water and making rocket fuel.

Nasa calls this concept “in situ resource utilisation” and it’s an important factor in selecting human landing sites on Mars.

Satellites orbiting Mars are essential in helping scientists determine the most apropriate places for building the first Martian research station.

The authors of the new paper make use of data from two of those spacecraft, Nasa’s Mars Reconnaissance Orbiter (MRO) and Mars Odyssey Orbiter, to locate water ice that could potentially be within reach of astronauts on Mars.

Source – NASA ( National Aeronautics and Space Administration )

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