What are 5 reasons Pluto is not a planet?
According to new rules adopted by the International Astronomical Union, a celestial body must meet the following criteria in order to qualify as a planet:A planet must be round.A planet must orbit the sun.A planet must have “cleared the neighborhood" of its orbit.
According to new rules adopted by the International Astronomical Union, a celestial body must meet the following criteria in order to qualify as a planet:A planet must be round.A planet must orbit the sun.A planet must have “cleared the neighborhood" of its orbit.