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How Many Planets are in the Solar System? - Universe Today
I’m just going to warn you, this is a controversial topic. Some people get pretty grumpy when you ask: how many planets are in the Solar System? Is it eight, ten, or more? I promise you this, though, we’re never going back to nine planets… ever. When many of us grew up, there were nine … Continue reading "How Many Planets are in the Solar System?"