31 Jul '18, 3pm

NASA study throws cold water on idea of terraforming Mars

NASA study throws cold water on idea of terraforming Mars

"The atmospheric pressure on Mars is around 0.6 percent of Earth's," explains Bill Steigerwald, science writer for NASA's Goddard Space Flight Center, in the Phys.org article. "With Mars being further away from the Sun, researchers estimate a CO2 pressure similar to Earth's total atmospheric pressure is needed to raise temperatures enough to allow for stable liquid water. The most accessible source is CO2 in the polar ice caps; it could be vaporized by spreading dust on it to absorb more solar radiation or by using explosives. However, vaporizing the ice caps would only contribute enough CO2 to double the Martian pressure to 1.2 percent of Earth's, according to the new analysis."

Full article: https://www.mnn.com/earth-matters/space/blogs/new-nasa-st...

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