By Peter Anderson Highway 17, the road I drive south to Alamosa, is also known as “The Cosmic Highway.” Why? UFOs I suppose. At the very least, alien aficionados can find each other on the observation deck at the UFO Watchtower. And then there’s the billboard, earth as seen from the moon, the great revelatory image of the twentieth century with the caption: “Good planets are hard to find.” I hear talk of strange lights that cannot be explained, though I have never seen one myself. I have seen the occasional mirage. Vapors rising from our high desert wetlands create…