alancronin writes "In conjunction with BBC's recent astronomy television program Stargazing Live comes a citizen science project to analyze images of Mars. Zooniverse has set up a site that allows people to explore the surface of Mars in incredible detail with pictures taken from the HiRISE (High Resolution Imaging Science Experiment) camera on board the Mars Reconnaissance Orbiter. HiRISE can image Mars with resolutions of 0.3 m/pixel (about 1 foot), resolving objects below a meter across."
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.