1 авг 2006 г. - Pluto is Not a Planet
Описание:
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.Добавлено на ленту времени:
Дата:
1 авг 2006 г.
Сейчас
~ 19 г назад