Adam Frank is a professor of astrophysics at the University of Rochester. He is a co-founder of NPR’s 13.7: Cosmos and Culture blog and an on-air commentator for All Things Considered. He also served as the science consultant for Marvel Studio’s Dr. Strange. He is the author of Light of the Stars: Alien Worlds and the Fate of the Earth (W. W. Norton & Company), which tells the story of humanity’s coming of age as we awaken to the possibilities of life on other worlds and their sudden relevance to our fate on Earth. Astrophysicist Adam Frank traces the question of alien life and intelligence from the ancient Greeks to the leading thinkers of our own time, and shows how we as a civilization can only hope to survive climate change if we recognize what science has recently discovered: that we are just one of ten billion trillion planets in the Universe, and it’s highly likely that many of those planets hosted technologically advanced alien civilizations. What’s more, each of those civilizations must have faced the same challenge of civilization-driven climate change.