🙋 I saw this too

1957 - "torpedo" shaped UAP circles Atomic Plant at Shippingport, USA, the top half green-coloured and the bottom half a reddish-orange, both separated by a strip of yellowShippingport, Pennsylvania, United States · around 19:00

Did you see the same thing — or something like it — at the same time? Add your own account. Several independent witnesses is the strongest evidence a sighting can have.