I stumbled across this while researching moons and got a little chill/thrill. This was recorded from a live transmission from the Space Shuttle Atlantis on NASA TV. They were using the camera to look for imperfections in the ship's hull before landing the following day when the astronaut reported seeing a non-rigid, cloth-like metallic/reflective object that "didn't look like anything I've ever seen on the outside of the shuttle" passing within 100 feet of the shuttle. According to the YouTube poster the shuttle was traveling at over 17,000 miles an hour and as you can see the objects are easily speeding away. I'll let you draw your own conclusions.
(Note: It isn't until the 4:50 mark that the camera is turned to look at the UFOs)