Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...
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Why Is Pluto Not A Planet Anymore?
In 1930, scientists discovered a small celestial body on the outer edge of our solar system. They called it Pluto and classified it as a planet. However, the International Astronomical Union (IAU) — ...
Pluto in culture -- Pluto in history -- Pluto in science -- Pluto's fall from grace -- Pluto divides the nation -- Pluto's judgment day -- Pluto the dwarf planet -- Pluto in the elementary school ...
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