Space exploration By s-bstromseth Period: Oct 1, 1957 to Dec 31, 2013 time man explord space Period: Aug 17, 1958 to Sep 9, 1978 Pioner Period: Jul 22, 1962 to Nov 3, 1973 Mariner Program NASA Aug 20, 1975 Viking probs Period: Jan 1, 1981 to Jan 1, 2011 space Shutell Oct 18, 1989 Galileo spacecraft Jupter's moon NASA Oct 1, 1997 Cassini project NASA Aug 8, 2000 Gensett lancht on 8-8-2000 NASA Period: Nov 2, 2000 to Apr 4, 2011 ISS the ISS was completed in 2011 and is stil in use today.