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| | Globus Cassus - Facts, Information, and Encyclopedia Reference article |
 | | Globus Cassus is a utopian project for the transformation of Planet Earth into a much bigger, hollow, artificial world with an ecosphere on its inner surface. |
 | | However, on planetary scale the proportions would be altered, with Globus Cassus being only slightly smaller than Saturn, the Solar System's second-largest planet. |
 | | Starting at four precisely defined points in the geostationary orbit, four space elevators are built. |
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