Artifacts 12
Every copy this mystery rests on, each with its own key and its distance from the original.
Document2 steps from object
JohnPassos (Wikimedia Commons) · CC BY-SA 4.0
Document2 steps from object
Boyajian and colleagues · publisher
Document1 step from object
Bruce L. Gary, Hereford Arizona Observatory · CC0
Document2 steps from object
Yang and colleagues · CC-BY-4.0
Document2 steps from object
Pearce and colleagues · publisher