I was watching tv and it reminded me of an experience i had nearly 30 years ago while i stationed at an area outside of nellis. it was during the gulf war, another airman and i were conducting security checks of the structures in a storage area on foot. as we were walking the storage area we both saw lights (orange, yellow and red… fluctuating intensity of each sphere)… two of them. they came down and hovered over the street lights for a minute or two, bouncing back and forth and periodically they would stop and remain still. suddenly, they flew off at 90 degrees and disappeared – fast like a comet but no tail. both of us looked at each other, shrugged, and never spoke of it. never reported it and never really gave it any consideration except, just thinking it was one of those strange encounters in the military. no physical effects… it appeared to just observe us and fly away.