Date of discovery: March 22, 2017
Location of discovery: Crater on Earths Moon
Source NASA photo: http://www.lpi.usra.edu/resources/lunarorbiter/images/print/5126_med.jpg
Here is a very cool discovery by Youtube user Mark Sawalha. He found several highly detailed structures in this photo, so I went to have a look for myself and found a few more, which you will see below the video.
Scott C. Waring
Eyewitness states:Excavator bucket shaped mechanical object is found on the Moon. It's located near Tycho crater. It appears in four separate lunar orbiter 5 images.