Former astronaut doubts that NASA or SpaceX will make it to Mars with their shiny new rockets

Former astronaut doubts that NASA or SpaceX will make it to Mars with their shiny new rockets  BGR NASA aims to send robots to the moon  Washington Post Move Over, Humans: NASA Plans to Send Robots to Moon  Geek Astronaut Chris Hadfield says the rockets from NASA, SpaceX, and Blue Origin won't take people to Mars  Business InsiderFull coverage

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