OK, I'm back, and I've done my "research"...so...

During the 3rd Moonwalk of Apollo 17, Capcom Robert Parker saw something strange on the Rover video.

He radioed the crew, saying..."17, what's out there in the distance on a hillside in the field of view of the camera"?

Within moments it was determined to be something quite ordinary, Bob then stated..."We thought we had an artifact or something like that...".

The question is...

What did Bob Parker "mistake" for an artifact?