Education
Franklin & Marshall College.
Astronomer Planetary scientist
Franklin & Marshall College.
He argued for a distinction between what are now called dwarf planets and the other eight planets based on their inability to "clear the neighborhood around their orbits", although his proposal suggested the terms "unterplanet" and "überplanet" and used the word "dwarf" to mean something else. He currently works at the Southwest Research Institute, Boulder, Colorado, and studies planetary orbits and their evolution through solar system history. Levison is the Principal Investigator of the proposed Lucy (spacecraft) Trojan asteroid mission which was selected as one of five semifinalists for the 2015 National Aeronautics and Space Administration Discovery Program mission competition.
