Not really sure what I'm looking at, especially whether the video of ground control personnel is properly synched with the video shot from the space shuttle. Looks to me like the individual who posted this piece on the UFS site is equally unsure as you'll note he says, "If it's true....."
This video purports to be from STS 80, a late 90s space shuttle mission often associated with UFO activity. There is video of multiple objects throughout that mission, although NASA contends all were ice crystals (primarily), space junk, meteors, etc. Ice crystals have been seen by astronauts since the earliest days of manned space flight, some may remember John Glenn's "fireflies" sighting during his Mercury mission. My guess is NASA's explanation accurately explains the overwhelming majority of these objects, but it only takes one unexplained incident to further the possibility of alien craft.