Spaceflight Insider

News Archive / Tagged: geophysics

  • Study makes case for geophysical planet definition

    Laurel KornfeldJanuary 16th, 2022

    In an in-depth study of planet classification from the time of Galileo to the present, a group of planetary scientists criticize the 2006 International Astronomical Union planet definition as being rooted in folklore and astrology and argue for a geophysical definition that includes spherical moons as secondary or satellite planets.