Planetology: Unlocking the Secrets of the Solar System
Ellen Stofan is a planetary geologist who has conducted research on the geology of volcanic and tectonic features on Venus, Mars, Titan, and Earth. She is currently a Senior Research Scientist of proxemy Research and an Honorary Professor of Earth Sciences at University College London.Tom Jones is a scientist, author, pilot, and former NASA astronaut. He led three space walks to install the centerpiece of the International Space Station. He is the author ofSky Walking: An Astronaut’s Memoir(Harper Collins, 2006) andThe Complete Idiots Guide to NASA(Alpha, 2002) as well as a contributing writer toSmithsonian Air and Spacemagazine.