The image is a photograph of a clear blue sky. The sky is a bright, clear blue with no clouds in sight. In the center of the image, there is a long, wispy white cloud that appears to be a contrail or trail of some kind. The cloud is curved and has a slight curve, creating a sense of movement. The trail is not visible in the image and is not clearly defined. The image is taken from a low angle, looking up at the sky.