View Full Version : ‘Meteoric Smoke': Comet Siding Spring Could Alter Mars Chemistry Permanently

2014-Nov-27, 04:10 PM
Feeling lucky? Events such as the Comet Siding Spring approach by Mars in October only happen about once every eight million years, according to NASA. And after we were treated to spectacular views from the agency’s spacecraft (see Curiosity and Opportunity and MAVEN, for example), we now have fresh pictures this month from an Indian […]

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