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originally posted by: Zaphod58
a reply to: Baddogma
Planetary orbits are too stable. If a planet sized body came through our solar system the orbits would show it, but they're stable and almost perfect.
originally posted by: DenyObfuscation
originally posted by: Ultralight
a reply to: Christosterone
They didn't even see the Chelabynsk meteor incoming and look what it did in Russia.. You put a lot of faith in those who watch the heavens.
If you think that being about 20m in diameter would make it easy to spot, you'd be wrong.