Mars -- Mariner 4
Date: 15 Jul 1965

Mariner 4's and the first close-up image ever taken of the planet Mars.

This shows an area about 330 km across by 1200 km from limb to bottom of frame, centered at 37 N, 187 W. The area is near the boundary of Elysium Planitia to the west and Arcadia Planitia to the east. The hazy area barely visible above the limb on the left side of the image may be clouds. This portion of the feature has been enhanced to bring out more of the haze-like features. The resolution of this image is roughly 5 km and north is up. (Mariner 4, frame 01D.)

Credit: NSSDC Photo Gallery