Mars may have unique kind of snow; NASA rover Curiosity finds record cold temps
Originally published: September 18, 2012 9:07 AM
Updated: September 18, 2012 3:09 PM
By THE ASSOCIATED PRESS
Photo credit: AP, 2003 | A new report on a study of the Mars atmosphere indicates that the Red Planet has snow on the ground, at the southern pole and in the clouds. The report is being published this month in the Journal of Geophysical Research. This photo was taken by the Hubble Space Telescope nearly a decade ago on the planet's closest approach to Earth in 60,000 years.
The Mars rover Curiosity recently recorded a temperature of 132 degrees below zero, an intensity of cold that is difficult to comprehend. Yet on Mars, incredibly, that's too warm for it to snow. For that, it needs to reach minus-193 degrees, the temperature required for carbon dioxide to freeze and dry ice to form.
Fortunately for Martian snow lovers, it can get as cold as about 250 degrees...
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