Curiosity is an American documentary television series that premiered on August 7, 2011, on the Discovery Channel. Each episode focuses on one question in science, technology, and society (e.g., why the RMS Titanic sank) and, for the first season, features a different celebrity host. Stephen Hawking hosted the premiere episode titled "Did God Create the Universe?", which aired simultaneously on seven Discovery Communications networks: Discovery Channel, TLC, Discovery Fit and Health, Animal Planet, Science, Investigation Discovery, and Destination America. Season one consists of 16 episodes.