planet pluto
Pluto was discovered in 1930. At the time it was considered to be a planet, but it is now considered a dwarf planet.
Pluto was a planet discovered in 1930
Pluto was discovered in 1930 by Clyde Tombaugh.
Pluto, Discovered in 1930
pluto was discovered in 1930
No planet was discovered in 1932. You probably mean Pluto. That was discovered in 1930. It has since been downgraded to a "dwarf planet".
Pluto
Pluto, now officially considered a "dwarf planet", was discovered by Clyde Tombaugh at Lowell Observatory in Flagstaff, AZ, in 1930.
Clyde Tombaugh discovered Pluto in 1930.
Pluto was discovered in 1930 and assumed to be a planet at that time.
Pluto was discovered in 1930 but it is not a planet anymore according to the International Astronomer's Union
Pluto was discovered in 1930 and dubbed the ninth planet. It was known as the ninth planet up until 2006, when it was reclassified as a dwarf planet. Now there are only eight officially recognised planets in our solar system, with an additional five dwarf planets and several more dwarf planet candidates.