1969 Press Photo Televised pictures from Mariner 6 of south polar cap of Mars

Televised pictures from Mariner 6 of the south polar cap on Mars have caused scientists at Jet Propulsion Laboratory in Pasadena, California, to conjecture extensively on what they show. The irregularity of the north boundary, they speculate, could be due to topographic relief. The pictures show the cap is invisible at the edge of the planet, something not revealed by earthbound telescopes.

Photo is dated 1969.

Photo measures 10.75 x 8.25 inches.