Il lato illuminato di Mercurio – gentilmente offerto dalla sonda Messenger della NASA.
“The image shows features as small as six miles in size. Similar to previously mapped portions of Mercury, this hemisphere appears heavily cratered. It also reveals some unique and distinctive features. On the upper right is the giant Caloris basin, including its western portions never before seen by spacecraft. Formed by the impact of a large asteroid or comet, Caloris is one of the largest, and perhaps one of the youngest basins in the solar system.”
Alla Via Così!