Billionaire entrepreneur Richard Branson and his team successfully flew to the “edge of space” on the Unity 22 mission aboard a Virgin Galactic plane on July 12. The event was hailed as the start of space tourism, narrowly beating the planned launch on 20 July by fellow billionaire business magnate Jeff Bezos and his firm Blue Origin. But does the 85km (53 miles), the altitude of the recent Virgin Galactic flight, actually count as space? And what are these companies likely to achieve going forward? The definition of where space begins is very subjective. The Kármán line is a distance…
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