The image shows a clear blue sky with a thin white line in the center. The line appears to be a contrail or trail of some kind, possibly from an airplane or a jet. The sky is a bright, clear blue and there are no clouds in sight. The contrail is made up of multiple lines, creating a straight line that extends from the top left corner of the image to the bottom right corner. The lines are evenly spaced and appear to be made of a smooth, uniform material. The image is taken from a low angle, looking up at the line.