A shellworld is any of several types of hypothetical megastructures: A planet or a planetoid turned into series of concentric matryoshka doll-like layers supported by massive pillars. A shellworld of this type features prominently in Iain M. Banks' novel Matter.
A shellworld is any of several types of hypothetical megastructures: A planet or a planetoid turned into series of concentric matryoshka doll-like layers supported by massive pillars. A shellworld of this type features prominently in Iain M. Banks' novel Matter.
Source: Wikipedia "Shellworld" · CC BY-SA 4.0
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