A cute idea from science fiction, a planetarium showing only disproved conjectures about the solar system.
Vulcan nearest to the Sun, (proposed in 1880 to explain the perihelion advance of Mercury, disproved by Einstein, eliminated by SOHO observations).
Mercury with one side always facing the Sun (proposed “hundreds of years” ago, disproved using radar reflection data in the mid 1960s).
Venus with its steamy jungles and Venusaurus erectus (proposed in 1918 based on the observation that Venus clouds are of water, disproved in 1962 when Mariner 2 found temperatures above 220 degrees C).
Mars with its canals and stilt cities (discovered in 1877, disproved by Mariner 4 in 1965).
A planet between Mars and Jupiter that broke up to form the asteroid belt.
The tyrannical natives of North Polar Jupiter (invented by E.E doc Smith).
The caroming worlds of Velikovsky (proposed in 1950).
Black star Nemesis (proposed to explain a perceived cycle of mass extinctions in the geological record).
Five outer worlds named Hyperborea, Mu, Atlantis, Hy-Brasilica, Antilles (Huh?)