Video: Yellow UFO Spotted Above Astronaut During NASA Space Walk “This amazing catch was caught on live NASA web cam this week. The cam has literally caught hundreds maybe a thousand or more UFOs over the years. This is a very strange yellow craft. Around the craft we see the typical blur like mist that UFOs are famous for. This mist is believed to be caused by the crafts propulsion system,” reports Scott C. Warning, author of UFO Sightings Daily.