By Ryan Stacy
Conspiracy theories about the images of Mars collected by NASA's rovers are almost as old as the landings on the red planet themselves. Prominent among them: the accusation that NASA has misrepresented photos of the terrain at Canada's Devon Island as being those captured by the rovers on the surface of Mars. Complicating the issue is the fact that NASA has indeed used Devon Island as a testing ground as part of its Haughton-Mars Project—its extremely rocky terrain makes it a suitable place to conduct "analog missions" in order to plan for the real thing. And recently, the hoax theory has reportedly surfaced again online, with renewed allegations that the closest NASA's gotten to Mars has been Arctic Canada. Some of those weighing in on the matter, in fact, seem to question the notion that Mars itself exists at all.