NASA's Dawn probe is giving scientists a closer look at two of the most overlooked objects in the solar system: asteroids Vesta and Ceres. Find out why Vesta and Ceres can teach us about the origins of the solar system. Dr. Thomas Prettyman
is a member of the Dawn science team and a planetary scientist at Los Alamos National Laboratory in NM; Dr. Tom McCord
is also a member of the Dawn team and is a planetary scientist with Bear Fight Institute in Washington.