To capture this rare event, two of NASA’s WB-57 jet planes, equipped with special instruments, will follow each other at 740 kilometres per hour, about a quarter of the speed of the moon’s ...

IT之家 11 月 26 日消息，美国国家航空航天局（NASA）今天宣布，已敲定 SpaceX 的猎鹰超重火箭发射“蜻蜓号（ Dragonfly）”土卫探测器。 NASA 表示 ...