Project Icarus is tasked with designing an interstellar spacecraft capable of exploring nearby stars and studying their planetary systems up close.
伊卡洛斯计划的任务是设计一艘能够探索附近恒星并近距离研究其行星系统的星际航天器。
2
NASA does have a planetary protection program where spacecraft are sterilized and sometimes destroyed at end-of-mission.
NASA的确有行星的保护计划。例如宇宙飞船是消毒过的，有时候在任务完成后会被销毁。
3
In July, planetary scientists announced two candidate dust particles from the Stardust spacecraft, which returned to Earth in 2006 after seven years of collecting dust samples in space.