One of NASA Mariner 10 two TV cameras took this picture of a densely cratered region of Mercury on Sept. 21, 1974, 80 minutes prior to the spacecraft second close encounter with the planet.
Densely Cratered Region
One of NASA Mariner 10 two TV cameras took this picture of a densely cratered region of Mercury on Sept. 21, 1974, 80 minutes prior to the spacecraft second close encounter with the planet.