We are not alone in the universe — Steven Spielberg has been telling us this for years. Aliens are among us. Sometimes they hide in our closets, looking like adorable geriatrics with glowing fingers ( E.T. ). Other times, they swoop down to our terra firma on mother ships, inspiring us to contemplate life, the universe, and everything in between playing with our mashed potatoes ( Close Encounters of the Third Kind ). Spielberg has warned us to watch the skies, lest these visitors try to recruit