One summer day in Texas in 1980, the witness was walking through a park in Houston when he noticed a 'grey triangle' moving away from him at about the height of 2X a normal wooden telephone pole.
The triangle was big; and almost invisible (similar to cellophane), and had a 'motionless billow' design that was similar to heavy smoke entirely inside its circumference. You would have had to be looking directly at it in order to see this transparent object.
As it slowly moved away further, the whole thing was slowly 'probing' from side to side (like if you took a billiard square, and moved the front tip from right to left / left to right / and repeat).
It wasn't very thick in height; and there was no sound or lights. I ran up to a guy with a camera and excitedly asked if he saw it... but when I looked up again, it was gone and he didn't see anything. I just stood there in disbelief that nobody else saw this triangle object.
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