NASA UFO FOOTAGE TAKEN FROM ENDEAVOUR’S ARRIVAL AT THE ISS
On May 18, 2011 during Endeavour’s arrival at the International Space Station three unknown objects appear and Ground Control orders “Endeavour please pause the playback.”
So essentially, NASA stops the live stream while the objects pass Endeavour’s background. At around the 2:22 mark of the video you hear the request from NASA to ask Endeavour to make the pause after the appearance of unidentified lights in the back.
Press PLAY button @ top left for full screen viewing