Mission
.
Mariner 6
Mariner Mars 69
Feb. 24, 1969
Flew by Mars in July 1969 and sent
data on topography and atmosphere (equatorial
region).
Mariner 7
Mariner Mars 69
Mar. 27, 1969
Flew by Mars in Aug. 1969 and sent
similar data as above (polar regions).
Mariner H
Mariner Mars 71
May 8, 1971
Launch unsuccessful.
Mariner 9
Mariner Mars 71
May 30, 1971
Inserted into Martian orbit in Nov.
1971; mapped 85% of planet.
Mariner 10
Mariner Venus Mercury 73
Nov. 3, 1973
Flew by Venus in Feb. 1974, Mercury
in Mar. and Sept. 1974 and Mar. 1975; sent data on
atmosphere, surface, and physical characteristics of two
planets.