According to recent market research in Japan, more than a million people a year would be prepared to pay such a price for a brief visit to a space station (Journal of Space Technology and Science, vol. 10, 19945.

• 最近在日本进行的市场调查显示，每年将有一百多万人乐意出这样一笔钱到宇宙空间站进行一次短暂的探访(《太空技术与科学杂志》第10卷，1994年)。