Space Exploration Timeline By s-zvander-hoek Period: Oct 1, 1957 to Dec 31, 2013 Space Exploration Timespan Oct 4, 1957 Sputnik I luanches Jul 21, 1961 First Mercury launches Mar 23, 1965 First Gemini launches Mar 2, 1972 Pioneer 10 launches Jul 26, 1972 First Space Shuttle developed Apr 5, 1973 Pioneer 11 launches Nov 3, 1973 Mariner probe launches Sep 9, 1975 Viking I launches Aug 20, 1977 Voyager 2 launches Sep 5, 1977 Voyager 1 launches May 4, 1989 First Magelllan launches Oct 18, 1989 First Galileo launches Apr 24, 1990 Hubble Telescope launches Oct 15, 1997 First Cassini launches Jun 10, 2003 Spirit launches Nov 26, 2011 Curioslty launches May 25, 2012 Space Station DragonX launches