The solar disk image is from Hinode. (sounds like "ee-no-day", means sunrise).
A sun-staring observatory, Hinode was launched from Uchinoura Space Center and viewed the transit from Earth orbit.
Superimposed on Mercury's dark silhouette is a detailed image of the planet's rugged surface based on data from the Mariner 10 probe that flew by Mercury in 1974 and 1975.
