Travel around the world has become increasingly affordable with technological improvements over the past few decades. For the middle-class, few places are still out of reach. The obvious candidate for a new frontier of tourism is therefore space – a travel destination that is still vastly unaffordable for all but the richest people in the world. But the allure of space is powerful, and for those of us with an adventurous streak, the idea of one day being able to leave Earth and see the world from a different perspective is extremely enticing.

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