Artifacts 18
Every copy this mystery rests on, each with its own key and its distance from the original.
Video1 step from object
NASA/JPL · Public domain (US government work)
Video1 step from object
MESSENGER Mercury Dual Imaging System wide-angle camera · Public domain (US government work)
Video2 steps from object
NASA/JPL-Caltech · NASA images; the released film carries a music soundtrack whose licence is not stated