NASA, in their usual understated fashion, has found a cave on Mars which may support life.
According to NASA, "Holes such as this are of particular interest because their interior caves are relatively protected from the harsh surface of Mars, making them relatively good candidates to contain Martian life." The post goes on to say, "Whether this life is in the form of cave trolls, dwarves or even a Martian Batman, we can't say. But the office pool currently is giving the best odds on the life being rabid Martian bats. And trust us, you don't want Martian rabies."