Mars Air Once Had Moisture, New Soil Analysis Says

Wednesday, June 25, 2008 - 09:28 in Astronomy & Space

A new analysis of Martian soil data suggests that there was once enough water in the planet's atmosphere for dew to hit the ground, leaving tell-tale signs of its interaction with the planet's surface. The study's conclusion breaks from the more dominant view that the liquid water that once existed during the red planet's infancy came mainly in the form of upwelling groundwater.

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