Scientists have suggested that if it is ever to be proved that life had existed on Mars, the evidence might be found in the vast fields of gypsum on the red planet's surface.
The claim had been made at a NASA conference in Houston, Texas, which was held to coincide with the Astrobiology Science Conference, reports ABC Science.
The claim had been made at a NASA conference in Houston, Texas, which was held to coincide with the Astrobiology Science Conference, reports ABC Science.
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