There is an increasing number of people who believe that NASA's rovers never left the Earth in the first place, and the pictures they are allegedly sending back from Mars are taken in remote areas of our planet. But if NASA's rovers are not on Mars, then where exactly are they?First of all, evidence suggests that the pictures that we see on NASA's website are not even taken by the Curiosity and Opportunity rovers. It is very possible that by now, both rovers are stored in a hangar, somewhere at NASA's JPL headquarters, and have been replaced by their smaller and more practical baby brothers. Sure, if needed, they can always be taken out for a spin, but other than that, the smaller rovers are more convenient to work with. One of the known locations where NASA is playing around with these small rovers is Devon Island, Canada. (It's worth noting that Devon Island is “the largest uninhabited island on Earth,” which seems like a pretty good location for a fake Martian photo shoot).Sure, one could think NASA just needed a place where they can simulate the conditions on Mars, but what's the point of simulating those conditions with miniature rovers, that look and work almost nothing like their bigger brothers? Their shape, size and weight are different and the wheels are worlds apart. It's really impossible to make even remotely accurate tests. They also don't have the on board laboratories, so what's there to simulate? Except for taking pictures, the “baby rovers” look useless. Check out the following video for further evidence (please notice the identical terrain as that from NASA's pictures):