Dark Black UFO Over Planet Mercury During Mariner 10 Mission, Dec 2017, UFO Sighting News.

Date of sighting: December 7, 2017
Location of sighting: Planet Mercury, Mariner 10
Photo: http://ser.sese.asu.edu/M10/IMAGE_ARCHIVE/CLEAN/0027229.png

I have seen these dark craft before in NASA videos. They shoot past and around the NASA spacecraft at incredible speed, and are often very small, probably controlled by an AI remote somewhere on the moons surface for an alien audience. This photo was taken on Nov 1973.

This UFO is move clear than the surface of the moon it is over, therefore the UFO is closer to Mariner 10 than the crater directly below it. 

Click here to see an old post where I caught such a stealth black UFO shooting past the NASA lunar lander. Only in slow motion could that UFO be seen. 
Scott C. Waring