一个巨大的倒置的蘑菇从美国弗吉尼亚海岸上空的天空骤然降落,这是美国国家航空航天局在检验一种航空器降落在行星表面或返回地球时的新防护方法和减速方法。这个大蘑菇是个应用了最先进的材料技术的巨大可充气外壳。当航天器进入行星大气层的时候,它需要降低速度,以减少着陆带来的影响和降低航天器表面的温度。科学家的最新设想是,在航天器上配置一个可充气的防热防护装备一一美国国家航空航天局把这个装备 A huge inverted mushroom suddenly falls from the sky over the Virginia coast of the United States, NASA’s new method of defense and deceleration when it tests an aircraft landing on a planet or returning to Earth. This big mushroom is a huge, inflatable shell that uses state-of-the-art material technology. As the spacecraft enters the planetary atmosphere, it needs to slow down to reduce the effects of landing and reduce the temperature on the surface of the spacecraft. The latest idea of ​​the scientist is to configure an inflatable heat protection device on the spacecraft. NASA put this equipment