Senior Research Scientist/Manager for Planetary Science, Jet Propulsion Laboratory
Planetary scientist and leading volcanologist Rosaly Lopes talks about her two new books, one about volcanoes everywhere in the solar system, and one that's a travel guide to both active and dormant ones here on Earth. Emily Lakdawalla learns our planet is putting on a few pounds in Q&A. Bruce Betts offers up another space trivia question on What's Up! Space headlines, too.