Russia has taken tourists into space on conventional rockets and last year a company headed by noted u . s . pilot and aircraft designer burt rutan successfully launched its spaceshipone craft into low earth orbit - twice 将旅游者送入太空。去年，美国著名航空伯特鲁坦创办的公司也已经两次成功地将“航天器一号”送入近地轨道。
