Have you ever wondered whether we’re alone in the universe? We now know that there are billions and billions of other planets in the universe, including many that are similar to Earth. If we aren’t alone, then why aren’t we being visited by little green men? If there is no other intelligent life in the universe, why not? In this show, we’ll explore the possibilities for life elsewhere in the universe, from other planets in our own solar system, to planets orbiting other stars and beyond.