NASA TV UFOs: Several Unknown Objects
Filmed Behind the Space Shuttle

The UFOs emit a bright, pulsating light:

http://www.youtube.com/watch?v=PTvuFhspY3I

The UFO footage comes from an unknown Space Shuttle mission.

NASA's Mission Control Center (MCC-H)
at the Lyndon B. Johnson Space Center
in Houston, Texas

NASA TV UFOs:
ISS Camera Films Pulsating, Unknown Object
during the Russian EVA on 27 July 2010

The Russian camera tracks the movement of the unknown object:

http://www.youtube.com/watch?v=fNVnAAR9Xvs