Hubble explores the limits of “roundness”: Ceres and Vesta
New Planet Definition Proposed by IAU The IAU therefore resolves that planets and other Solar System bodies be defined in the following way: (1) A planet.
Dwarf planets, asteroids and comets Max Mutchler Research and Instrument Scientist Space Telescope Science Institute STScI Public Lecture December 2, 2008.
Dwarf planets, asteroids and comets
