pale blue dot -carl sagan
作 者：片片
更新时间：2017-03-20 00:00
最新章节：第75章
PALE BLUE DOT A VISION OF THE HUMAN FUTURE IN SPACE CARL SAGAN FOR SAMAnother wanderer,May your generation seeWonders undreamt.SPACECRAFT EXPLORATION OF THE SOLAR SYSTEMNOTABLE EARLY ACHIEVEMENTSUNITED STATES1958 First scientific discovery in space-Van Allen radiation belt (Explorer 1)1959 First television images of the Earth from space (Explorer 6)1962 First scientific discovery in interplanetary space -direct observation of the solar wind (Mariner 2)1962 First scientifically successful planeta