NASA Mariner 10 took this picture some 2 1/2 hours before it passed Mercury on March 29, 1974. The bright-floored crater is the center of a very large bright area which could be seen in pictures from more than two million miles distant
Kuiper Crater
NASA Mariner 10 took this picture some 2 1/2 hours before it passed Mercury on March 29, 1974. The bright-floored crater is the center of a very large bright area which could be seen in pictures from more than two million miles distant