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Environment
Top voted Environment Articles
#371voted by our readers
By kayla1738kd BRONZE
Hot Springs, Arkansas
Scientist 1 Based on perturbations in Neptune's orbit, the search for a ninth planet was conducted, and Pluto was discovered in 1930. Pluto orbits the sun just as the other...
Hot Springs, Arkansas
Scientist 1 Based on perturbations in Neptune's orbit, the search for a ninth planet was conducted, and Pluto was discovered in 1930. Pluto orbits the sun just as the other...