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National UFO Reporting Center
Sighting Report
Occurred : 4/21/2005 04:50 (Entered as : 04/21/2005 04:50)
Reported: 4/25/2005 3:26:11 PM 15:26
Posted: 5/11/2005
Location: Sunnyvale, CA
Shape: Light
Duration:5 min
Big white light leaves with a loud rumbling noise

My co-worker told me that as he was driving into work that he saw a big, white light sitting stationary in the sky and that after a few minutes of observation that it took off horizontally with a loud rumbling noise.

His view of it was soon obstructed by some trees, but he had heard the loud rumbling noise with the car windows rolled up.

Several minutes later, he observed what seemed to be the lights of a large conventional aircraft in the general vicinity of where the bright white light had originally been spotted.