Are we alone in the universe? Why asking the question matters as much as answering it

As long as we've looked up into the starlit sky, people have wondered: Are we alone in the universe? And it’s a question that science takes seriously too, with NASA holding its first ever public meetings into its investigation of UFO reports earlier this spring. Still, given the vastness of the universe, there’s a good chance we’ll never know the answer. But science writer and author of The Possibility of Life, Jaime Green, says it’s still an important question to ask, because it teaches us much about ourselves. She joins guest host David Common to talk about the cutting edge science behind the search for extraterrestrial life... and Star Trek too.