Space Station By s-ldeng Aug 20, 1975 Launch of Viking 1 Sep 9, 1975 Launch of Viking 2 Jul 20, 1976 Viking 1 lands on Mars Sep 3, 1976 Viking 2 lands on Mars Jul 15, 1978 Viking 2 deorbit Aug 17, 1980 Viking 1 deorbit Apr 28, 1989 Launch of Magellan Spacecraft Oct 15, 1997 Launch of Cassini Aug 8, 2001 Launch of Genesis Jul 1, 2004 Cassini arrives in Jupiter Sep 8, 2004 Crashland of Genesis
