Thread: What if Earth had an inhabitable sister planet?
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Old 21-March-2008, 07:52 PM
Neverfly Neverfly is offline
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Originally Posted by Noclevername View Post
The asteroids-as-lost-planet concept was the predominant hypothesis up until the 1970's, and is widely referenced in early science fiction. Heinlein, Asimov, and "Doc" Smith all played with the notion.
Well, that's good news for Hogan
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