In Beyond Earth, the authors offer groundbreaking research and argue persuasively that not Mars, but Titan—a moon of Saturn with a nitrogen atmosphere, a weather cycle, and an inexhaustible supply of cheap energy—offers the most realistic, and thrilling, prospect of life without support from Earth. (Pantheon Press)
David Grinspoon – The Earth in Human Hands
Alan Stern and David Grinspoon – Chasing New Horizons
Alfred S. McEwen, Candice Hansen-Koharchek, Ari Espinoza – Mars