Circular orange/red fast moving aircraft without any sound which also made sudden 90 degree turn.My husband and I were sitting in our rental unit on Cape San Blas, FL, which overlooks the Gulf of Mexico. It was approximately 11 pm when my husband, who was facing the windows (we have a home with a large patio door with two other large windows which had no window coverings at the time) noticed a bright object in the sky. We walked out to the deck facing the gulf and viewed an object flying from the southwest on the cape at a rapid speed. The object was the size of a large SUV (for lack of a better description) and bright orange/red and was circular in shape. The object had no flashing lights and had a warm glow. The object flew along side the Cape and suddenly made a 90 degree turn toward the gulf of Mexico. The object made no sound whatsoever. I ran inside while my husband was still on the deck to retrieve my phone to video the object. By the time I returned (less than a minute) it was fading into the cloud bank over the Gulf of Mexico.