Via Cliff Mass: https://cliffmass.blogspot.com/2018/06/was-there-unannounced-missile-launch-on.html The first thing to note is that it's a 20 second exposure, so what we are looking at is NOT a trail, but a streak of light from a moving light source, like a rocket, or a light on a plane. Sure looks like a rocket. However that's because it looks like a trail. It more likely a point of light. The next thing to notice is that the "trail" gets bigger the higher it is in the image, which means that the object is moving towards the camera. So I suspect it's simply a plane, with landing lights on, flying towards the camera, and quite possible descending. The grey streak of light in front of the bright light is probably one side of the fuselage, illuminated by the forward facing landing light. The Landing light itself is off-center The streak is red on the other side, possibly another light.