A vertical video shows an airplane contrail in a blue sky. A large, fluffy cloud is visible on the left side of the frame, partially obscuring the sun. The cloud is dark gray on its underside, with white and light gray accents on the edges where the sunlight hits it. Light rays are visible behind the cloud. The contrail appears as a straight, thin white line stretching vertically across the blue sky, starting above the cloud and continuing out of view. The sky is a clear, vibrant blue.