Researchers calculate size of particles in Martian clouds of CO2 snow

Mars’ carbon dioxide ‘snowflakes’ are about the size of red blood cells. In the dead of a Martian winter, clouds of snow blanket the Red Planet’s poles — but unlike our water-based snow, the particles on Mars are frozen crystals of carbon dioxide. Most of the Martian atmosphere is composed of carbon dioxide, and in the…

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Mars has dramatic carbon dioxide atmospheric shifts

Of note: “Unlike Earth, which has a thick, moist atmosphere that produces a strong greenhouse effect, Mars’ atmosphere is too thin and dry to produce as strong a greenhouse effect as Earth’s, even when you double its carbon-dioxide content.” NASA Orbiter Reveals Big Changes in Mars’ Atmosphere PASADENA, Calif. — NASA’s Mars Reconnaissance Orbiter has…