It was our first close-up view of the tiny planet, showing craters as small as 500 feet (150 meters) across. The image above, taken on March 29, 1974, was captured when Mariner 10 was 3,700 miles ...

surrounds the star Fomalhaut and the newly discovered planet, Fomalhaut b, orbiting its parent star. (Photo by NASA via Getty Images) Fomalhaut has been known for some time to possesses a disk of ...

during its 50th orbit of the giant planet. Processing by citizen scientist Kevin M. Gill. There was no moon close-up this time, but Juno was able to capture this wide-angle image (above ...

You may need binoculars or a telescope for this one. It includes the three furthest planets in our solar system.