For many people, the definition of a planet was only made clear in 2006, when the spunky world Pluto was demoted from a planet to a dwarf planet. Now, a team of astronomers is pushing for “planet” ...
Things have been a mess since Pluto's demotion. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In 2006, the International Astronomical Union ...
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