NASA TV UFOs:
NASA Camera On Board the ISS Films UFO (or UFOs),
31 July 2009

NASA caught an unknown (it’s possible that these footage show more than one object), self-luminous, spherical object on camera during four different time frames on 31 July 2009:

http://www.youtube.com/watch?v=mkOhhHZ7nLY
(Video 1: 9:00 a.m. UTC)

http://www.youtube.com/watch?v=Zu1v1GxDULs
(Video 2: 10:30 a.m. UTC)

http://www.youtube.com/watch?v=DPPROXA6sOU
(Video 3: 9:20 p.m. UTC)

http://www.youtube.com/watch?v=W___DGN8Od0
(Video 4: 10:10 p.m. UTC)

NASA TV UFOs: Several UFOs Filmed over Houston, Texas, Unknown Space Shuttle Mission

The unknown objects were recorded by NASA’s camera while the Shuttle flies over Houston:

http://www.youtube.com/watch?v=BoPehfDtxbwe.com/watch?v=BoPehfDtxbw