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There has been many, many rumors going around about Pluto being a planet 或者 not. I just found out a few weeks 以前 the official new.
One of the most controversial subjects in our solar system is whether Pluto should be a planet.In 2006, Pluto was officially demoted from "planet" to "dwarf planet." But the debate's flared up again, as the New Horizons probe is set to become the first spacecraft to visit Pluto on Tuesday.Before that happens, we need to get one thing clear: there are very good reasons why Pluto isn't a planet."There are eight bodies in the solar system that dominate the others,"...
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Source: Min An @ Pexels.com
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Source: NASA, ESA
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Source: ESA
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Source: hidefwalls.com