Vampires? No Such Thing. Aliens, though, that's something else. They've been here, living quietly among us, since before the Industrial Revolution. Their goal: To ensure we never leave our Solar System. We have a bad habit of wiping out indigenous populations, and theirs is the nearest inhabited planet to ours. So when a scientist at Sydney University harnesses the power of wormholes, making interstellar travel a virtual walk in the park, one of these...