Bok
06-19-2013, 07:39 PM
Some things are uniquely Martian. And dry ice hovercraft may be one of them.
[More] (http://www.scientificamerican.com/article.cfm?id=dry-ice-martian-gullies)
More... (http://www.scientificamerican.com/article.cfm?id=dry-ice-martian-gullies)
[More] (http://www.scientificamerican.com/article.cfm?id=dry-ice-martian-gullies)
More... (http://www.scientificamerican.com/article.cfm?id=dry-ice-martian-gullies)