Trivia: Which planet was downgraded to a dwarf planet in 2006?
Earth
Saturn
Mercury
Pluto
The correct answer is Pluto
So why is this answer correct? : Pluto was discovered in 1930, becoming the ninth planet in the solar system. However, in 2006, the International Astronomical Union relegated the celestial body to dwarf planet status. While Pluto orbits the sun like other planets, it also shares its orbit with objects in the Kuiper Belt, which ultimately disqualified it from full planetary status.