Huffington post:
It was a glorious, sunny morning on Nov. 5, 2010, when crowds gathered to celebrate the changing of the Air Force Command at El Bosque Air Base in Santiago. From different locations, spectators aimed video cameras and cell phones at groups of acrobatic and fighter jets performing an air show overhead. Nobody saw anything amiss.
But afterward, an engineer from the adjacent Pillán aircraft factory noticed something bizarre while viewing his footage in slow motion. He turned it over to the government's well known Committee for the Study of Anomalous Aerial Phenomena, or CEFAA, for analysis.
The stunning conclusion: The Chilean jets were being stalked by a UFO.
In the clip below, the UFO is difficult to see because it's moving so fast. The clip is repeated with the UFO highlighted as it makes passes around three separate groups of airplanes:
For better full screen videos, see:
or:
http://www.niburu.nl/index.php?option=com_content&view=article&id=2336:ufo-gefilmd-boven-vliegbasis-in-santiago&catid=34:ufo&Itemid=47
Niburu reported the UFO speed around 6000-9000 km/h.