UFO Recorded In Mars Rover Photo May Be USAF Secret Project, May 2016, Video, UFO Sighting News.

 Above it the negative, focused. Below is the untouched original. 

Date of sighting: May 2016, SOL 572
Location of sighting: Mars
Source photo: http://mars.jpl.nasa.gov/msl-raw-images/proj/msl/redops/ods/surface/sol/00572/opgs/edr/ncam/NRB_448279363EDR_F0300484NCAM00299M_.JPG

This UFO was found in a rover photo by Streetcap1 of Youtube. It shows an orb flying in the background, monitoring the NASA rover. This orb may not be so alien after all. There is a great possibility that NASA/USAF has control of its own alien drone in order to really explore Mars and record the alien artefacts they find. This drone orb may even be able to retrieve small artefacts on the surface. 
Scott C. Waring