This artist’s rendition shows what it may look like if you were standing near the southern pole on the surface of Mars during the spring thaw. Below we can see how these features look from above in the HiRISE images classified by citizen scientists on Planet Four
Read more about how these features for on the Planet Four blog here http://blog.planetfour.org/2013/04/14/standing-on-the-surface, and have a go at classifying them yourself here http://planetfour.org/
