Will we recognize life if and when we find it elsewhere in the cosmos? It’s a challenging question because we have only the example of life on our own world to work with. Fred Hoyle’s The Black Cloud raised the question back in 1957, a great memory for me because this was one of the earlier science fiction novels that I ever read. I remember sitting there with it in my 5th grade class in St. Louis, Missouri, having been loaned the paperback that had begun to circulate among my fellow students. I was mesmerized by the account of life as I had never imagined it.