Mariner 4’s First Picture Clearly Showing Craters on Mars
July 15, 1965
| Credit | NASA/JPL-Caltech |
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With a range of 13,600 km and a sun angle of 29 degrees from zenith, this Mariner 4 image was the first picture showing defined craters on the surface of Mars. The area, 163 x 193 (262 x 310 km), is a heavily cratered region south of Amazonis Planitia.
