NASA · 2010-01-11 · 1958 Dec 31 , 1968 Dec 31 , 1979 Dec 31 , 1980 Dec 31 , 1981 Dec 31 , 1982...
1
NASA · 2010-01-11 · 1958 Dec 31 , 1968 Dec 31 , 1979 Dec 31 , 1980 Dec 31 , 1981 Dec 31 , 1982 Dec 31 , 1985 Dec 31 , 1990 1999 1999 1999 994056 Aug 20, 994055 Aug 20, 994064 sep