Mariner

2--Venus Flyby (1962)---first planetary space probe

4--Mars Flyby (1964)

5--Venus Flyby (1967)

6 & 7--Mars Flyby (1967)

9--Mars Orbiter (1971)

10--Venus and Mercury Flyby

Pioneer

10--Jupiter Flyby (1972)

11--Jupiter and Saturn Flyby (1973)

Viking I and II--Mars orbiter and lander (1976)

Voyager I and II (1977)--Outer Planets (except Pluto)

Pioneer Venus 1 & 2--Venus orbiter & lander (1978)

Magellan--Venus Orbiter (1989)

Galileo--Juptier Orbiter and probe (1990)

Sotto--the Sun (1990)

Mars Global Surveyor--Mars orbiter (1996)

Mars Pathfinder--Lander and rover (1997)

Cassini--will study Saturn (launched 1997 with Plutonium)