1915 – Pluto

while Pluto our solar system’s smallest planet was not discovered until 1930 on

planet was not discovered until 1930 on

planet was not discovered until 1930 on March 19th 1915 photographs of Pluto

March 19th 1915 photographs of Pluto

March 19th 1915 photographs of Pluto were taken unknowingly making that the

were taken unknowingly making that the

were taken unknowingly making that the first day that the planet Pluto our

first day that the planet Pluto our

first day that the planet Pluto our ninth planet was ever photographed