This computer photomosaic is of the Caloris Basin, the largest basin on Mercury. NASA Mariner 10 spacecraft imaged the region during its initial flyby of the planet after its launch in 1974.
This computer photomosaic is of the Caloris Basin, the largest basin on Mercury. NASA Mariner 10 spacecraft imaged the region during its initial flyby of the planet after its launch in 1974.