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Alpha, Beta and Proxima Centauri (circled). (Credit: CC BY-SA 3.0)Sign up for our email newsletter for the latest science newsAn artist’s rendering of the James Webb Space Telescope. (Credit: Northrup Gruman) An Orion propulsion schematic. (Credit: NASA) An artist’s concept of a toroidal space colony that could accommodate 10,000 people. (Credit: NASA) An artist’s conception of an artificial womb system. (Credit: Genetic Literacy Project) 1 free article leftWant More? Get unlimited access for as low as $1.99/monthAlready a subscriber? or Want...…Alpha, Beta and Proxima Centauri (circled). (Credit: CC BY-SA 3.0)Sign up for our email newsletter for the latest science newsAn artist’s rendering of the James Webb Space Telescope. (Credit: Northrup Gruman) An Orion propulsion schematic. (Credit: NASA) An artist’s concept of a toroidal space colony that could accommodate 10,000 people. (Credit: NASA) An artist’s conception of an artificial womb system. (Credit: Genetic Literacy Project) 1 free article leftWant More? Get unlimited access for as low as $1.99/monthAlready a subscriber? or Want...WW…