Space Exploration Timeline By s-lhawksford Oct 4, 1957 Sputnik 1 Launched Aug 17, 1958 Pioneer 0 Oct 11, 1958 Pioneer 1 Nov 8, 1958 Pioneer 2 Dec 6, 1958 Pioneer 3 Mar 3, 1959 Pioneer 4 Mar 11, 1960 Pioneer 5 Feb 20, 1961 Venera Probe Launched May 4, 1961 Murcury Launched Dec 16, 1965 Pioneer 6 Aug 17, 1966 Pioneer 7 Jun 14, 1967 Mariner 5 Launched Dec 13, 1967 Pioneer 8 Nov 8, 1968 Pioneer 9 Mar 3, 1972 Pioneer 10 Apr 6, 1973 Pioneer 11 May 14, 1973 Skylab Launched Aug 20, 1975 Viking 1 Probe Launched May 20, 1978 Pioneer 12 Aug 8, 1978 Pioneer 13 Apr 12, 1981 First Space Shuttle May 4, 1989 Magellan Launched Oct 18, 1989 Gallalaio Launched Apr 24, 1990 Hubble Launched Feb 17, 1996 N.E.A.R Launched Jul 4, 1997 Sojourner Landed Oct 15, 1997 Cassini Landed Aug 19, 1998 Gennisus Launched