Mars data indicate carbon dioxide snowfall
Scientists have received the clearest evidence yet of carbon dioxide snowfalls on Mars based on data provided by NASA’s Mars Reconnaissance Orbiter (MRO), NASA reported Tuesday.
Frozen carbon dioxide, known as “dry ice”, requires temperatures of about minus 193 degrees Fahrenheit. The report is being published in the Journal of Geophysical Research, NASA said.
“These are the first definitive detections of carbon dioxide snow clouds,” the report’s lead author, Paul Hayne of NASA’s Jet Propulsion Laboratory in Pasadena, California, said.