Quote:
Originally Posted by Catdaddy33
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Ok, sure. But Sedna and the other KBOs that have been discovered in the past few years aren't the elusive Planet X that people have been searching for. I think it's doubtful that a large "Planet X" (i.e. Neptune mass) exists, because it probably would have perturbed the orbits of Kuiper Belt and Oort Cloud objects to adversely affect the inner and outer solar system.