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Message Subject
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New dwarf planet in the Oort cloud changes picture of solar system. . .
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Poster Handle
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Bridge of Sighs |
Post Content
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"This orbital coincidence is what statistically suggests that a bigger planet tugged either long ago or continuously now at these smaller worlds' orbits to keep them clustered together. If the putative bigger planet is still there and is only a few times bigger than Earth, it would circle the sun about 250 times farther away than our planet does. A bigger one would circle even farther away."
Dan Vergano - National Geographic
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