Dr. Simone Marchi is a Principal Scientist at Southwest Research in Boulder, Colorado. His interests cover the formation and geology of the terrestrial planets, the Moon, and asteroids. He is Deputy Project scientist for the NASA Lucy mission, and Co-Investigator of the NASA Psyche mission, NASA Dawn mission, and ESA BepiColombo. He is a member of the science teams of the ESA JUICE and Rosetta missions. Marchi won the international Farinella Prize and NASA's Susan Mahan Neibur Early Career Award for his studies of the impact histories of terrestrial planets and asteroids and early evolution of the Solar System. He is also the recipient of several NASA and ESA mission group achievement awards, and has an asteroid named after him by the International Astronomical Union: Asteroid 72543 Simonemarchi. His work is regularly featured on the news.

• 1: Born out of Fire and Chaos


• 2: A Clash of Giants


• 3: Wandering Among the Planets


• 4: Earth's Wild Years


• 5: A Watery Mars


• 6: Creative Destruction


• Endnotes