1 agos 2006 año - Pluto is Not a Planet
Descripción:
On August of 2006 the International Astronomical Union (IAU) demoted Pluto to a Dwarf Planet. Pluto was demoted because it did not meet the textbook definitions of what a planet was. Pluto did not clear the neighborhood around its orbit.Añadido al timeline:
fecha:
1 agos 2006 año
Ahora mismo
~ 17 years ago
