I had taken my grandsons fishing. we saw a jet fly over & when i looked up again i saw what looked like a white balloon. one grandson guessed it was a plastic bag. i would look up occasionally & it was still there. i remembered i had my camera in the car & went & took several pictures from there. when i got back to the river & looked up, it was gone. was very surprised when i cropped the photo to see what it was.