Pluto
- Pluto was discovered by accident. Calculations which later turned out to be wrong, falsely predicted a planet beyond Nepture. Astronomers found Pluto before their mistake was corrected
- In 2006, Pluto was no longer considered a planet and was demoted to dwarf planet status
- Pluto is the 2nd most contrasty body in the Solar System, after Iapetus
Comment from GastroLady
Pluto is just a piece of rock floating in space. Scientists still think that there is another planet beyond Neptune though, and I’m sure this is based on good maths.