Jeff Bezos's space colonies would look like cylindersAn artist's concept of an O'Neill space colony, which could theoretically emulate Earth-like living conditions in space. O'Neill space colonies would be large enough to host entire cities, 10,000-foot-tall mountains, and millions of people. AdvertisementBezos isn't suggesting that people will be living in O'Neill space colonies by the end of the century. AdvertisementSaving Earth would be far easier than building Bezos' space colonies, he told BI. Even if we never make it to space colonies, the work of researchers studying extraterrestrial colonization could benefit us here on Earth.

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Persons: —, Jeff Bezos, podcaster Lex Fridman, Bezos, Fridman, astrobiologists —, Jeff Bezos's, O'Neill, Gerard K, Anthony Longman, Longman, Rebeca Gonçalves, Adam Watkins, we've, Watkins, you've, We've, Martin Rees, Gonçalves, Rees Organizations: Service, Business, Elon, SpaceX, European Space Agency, NASA, University of Nottingham, United, Royal Locations: Antonio , TX, O'Neill