The notion of space tourism took hold in 2001 with a $20 million flight aboard a Russian spacecraft by Dennis Tito, a millionaire engineer with an adventurous streak.

2001年，丹尼斯·蒂托——一位富有冒险精神的百万富翁工程师——以2000万美元的价格乘坐俄罗斯宇宙飞船，开启了太空旅游的概念。