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Are Newt Gingrich’s moon colonies plausible?


On the campaign trail, former Speaker of the House Newt Gingrich has vowed to voters that he would create a colony on the moon if elected president. Is it possible to really have humans living on the moon? Famed astrophysicist Neil deGrasse Tyson said that moon colonies are "reachable scientifically" and that a conversation about space gets Americans dreaming about the future again.