Library of Congress Pluto was demoted from downgraded Pluto's status demoted Pluto to a dwarf planet reclassified the largest ones as "dwarf planets" downgraded downgraded Pluto’s status demote Pluto’s status as a planet Pluto didn't lose its planet status Why is Pluto no longer a planet? Why is Pluto no longer a planet? downgraded Pluto’s status downgraded Pluto’s status downgraded Pluto’s status https://www.loc.gov/rr/scitech/mysteries/pluto.html criteria: downgraded Pluto’s status demoted however downgraded Pluto’s status downgraded Pluto’s status https://www.loc.gov/rr/scitech/mysteries/pluto.html demoted demoted to "dwarf planet" status Library of Congress Library of Congress dwarf planet cleared the neighbourhood downgraded Pluto’s status three key components demoted décision de l'Union astronomique internationale downgraded Pluto’s status Planet or otherwise downgraded Pluto’s status downgraded Pluto’s status