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一种像科幻电影中的UFO那样在空中自由穿行的碟状飞行物有望在不远的将来开始为人类服务。美国佛罗里达大学的苏布拉塔·罗伊日前宣布,这种新型飞行器以离子化的气体为推进剂,既能够在大气层内飞行,也可用于执行未来的星际探测任务。美国佛罗里达大学的科研人员计
A type of flying dish that is free to travel in the sky like a UFO in a science fiction movie is expected to begin serving mankind in the near future. Subrata Roy of the University of Florida recently announced that the new aircraft will use ionized gas as a propellant to fly both in the atmosphere and for future interplanetary missions. Scientists at the University of Florida