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How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system’s genesis, plus its planets, moons, and asteroids. Subscribe: http://bit.ly/NatGeoSubscribe #NationalGeographic #SolarSystem #Educational About National Geographic: National Geographic is the world's premium destination for ...
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Did you know the first planets to be discovered outside our solar system were given the rather ominous names Poltergeist and Phobetor?⁣ ⁣ Known as exoplanets they were discovered in 1992. Before that, we didn't know if planets existed outside our solar system.⁣ ⁣ The two astronomers who discovered them, Alex Wolszczan and Dale Frail, weren't actually hunting for other planets. They were studying pulsars - dead, rapidly rotating neutron stars - at the Arecibo Observatory in Puerto Rico. Noticing
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