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Discuss and Debate #Earth

We should build an international space elevator?

43
Should We Colonize Venus Before Mars?

198
We should build Lagrange colonies before settling on mars

17
La terre est plate !

6
Earth is not flat but a sphere.

50
Humanity Needs a Simple, Pragmatic Path to Graceful, Sustainable Survival for Everyone! I Propose SIX Simple Principles

8

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