The Science of Planet Four
Every winter Mars’ polar region is blanketed by a layer of frozen carbon dioxide, (dry ice) approximately 0.5 – 1 meter deep. In the springtime, this seasonal polar cap sublimates (changes directly from ice to gas). A host of unearthly phenomena are associated with this dynamic process, including the creation of ‘fans’ which appear briefly on the surface and help us understand the weather on the red planet. These fans are markers for the wind direction and speed at the time that carbon dioxide gas was escaping from beneath the surface. You can read more on the main site.
About this Blog
Planet Four is a citizen science project from the Zooniverse. We’re asking for help in marking ‘fans’ on the surface of Mars. All of the Zooniverse projects have blogs and you’re currently reading the blog for the Planet Four project. Visit www.planetfour.org to find the site itself.