Look closely at these two photos. They show the contrail of an aircraft (or rocket?). I got the photos at our home in Naples, Fla., on April 21, 2016. It appears that the contrail is going straight up. Enlarging the photo appears to show that the aircraft (or rocket) had twin engines. This photo is the best telephoto shot I could get with my iPhone. The contrail was off to the north-northeast or NE from Naples.
