WHATEVER the faults of John Carter, the new film based on the early work of Edgar Rice Burroughs, we're happy to have the chance to head back to Mars. Given the way NASA funding is going, this may be our only chance.As a species, we've been fascinated with the Red Planet for a long time -- the film is only the latest of a long line. Why does it draw us to it, and how has our thinking about Mars … [Read more...]