摘要
一群科学家、天文学家与工程师每周都在马里兰州"霍华德县一座研究园区里的一间会议室开会,拟定拯救世界的计划。“保持冷静,带着‘飞镖’。”墙上的一张海报写道。“飞镖”是“双小行星重新定向测试”的简称—这是他们避免灾难的计划,也是美国国家航空航天局的第一项非探索性的任务,却能防卫来自宇宙空间的危险。
Ateam of scientists,astronomers and engineers meets w eekly in a conference room on a Howard County,Maryland research campus and plans to save the world.“Keep calm and carry DART,”reads a poster on the wall.DART-the Double Asteroid Redirection Test-is their plan to avert catastrophe.It's also NASA's first mission not to explore space,but to defend against it.
