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科学家将一个热气球放飞到了地球高空的大气层中,这个气球搭载有能够检测到外星生物留下痕迹的探测器。这个行星大气微小物种探测器在距离地面32千米的高空运行了超过一个小时,随后借助降落伞安全返回地面。用于实验的探测器是由美国航空航天局和中佛罗里达大学的研究人员研发的,未来会被送到其他行星上去,这次升空的目的是对探测器进行预先的测试。行星大气微小物种探测器能够探测到浓度只有百万分之一的气体,比目前已有的技术灵敏得多,因此能够发现其他行星上的
Scientists fly a hot-air balloon into the atmosphere above the Earth’s surface, equipped with a detector that detects traces of alien life. The Planetary Species Detector has been operating at a height of 32 kilometers above the ground for more than an hour and then safely returns to the ground with the help of a parachute. The probes used for the experiments were developed by researchers at NASA and the University of Central Florida, and will be sent to other planets in the future. The purpose of the launch is to test the detectors in advance. The Planetary Species Species Detector, which detects gases in concentrations as small as one millionth of a meter, is much more sensitive than currently available technologies and can therefore detect