It’s not long since billionaires were competing to get to the “edge of space”. Now, the first set of private citizens is getting ready to take a SpaceX shuttle up to the International Space Station (ISS). Unlike the short “joyrides” of Richard Branson and Jeff Bezos, this mission will be reaching the roughly 400km altitude needed to dock with the ISS. The mission by the US commercial aerospace company Axiom Space is a major step forward in private space travel, and is part of a plan to build a private space station. With Russia recently pulling out of collaborating on…

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