美国科学家正在研制一种比过去任何飞机都飞得更高的飞机 ,它可以在天空中停留几个月 ,并为电讯和救灾带来革命性的变化。美国太空总署的科学家弗特说 :“我们把这看作是一个新时代的开始 ,就像怀特兄弟 190 3年发明飞机时一样。”该架无人驾驶飞机名叫“赫利奥斯”( Helios ) American scientists are developing a plane that flies higher than any other aircraft in the past, staying in the sky for months and bringing revolutionary changes to telecommunications and disaster relief. NASA scientist Robert Fute said: “We see this as the beginning of a new era, just as the Wright brothers invented the plane in 1903.” The drone named “Helios” (Helios)