Bill Nye (the Science Guy) is a science educator, actor, writer, and the host of the Netflix science show Bill Nye Saves the World. He serves as CEO of the Planetary Society, an organisation founded by Carl Sagan. The Society engages citizens to advance space science, exploration, and effective space policy. He lives in Los Angeles. Nirmala Nataraj is a New York-based writer and editor with a background in science writing - particularly cosmology, ecology, and molecular biology - and a focus on the visual and performing arts. She is the author of Earth + Space and The Planets, also from Chronicle Books.