In the video, a person is writing on a whiteboard with a black marker. The person writes "U = ASTRONOMICAL UNIT" at the top of the whiteboard. Then, the person writes "U = 149 597 871 km" underneath the first line. Next, the person writes "92 955 807.3 m" underneath the second line. The person then writes "U = 149 597 871 km" again, this time with a red marker. The video ends with the person writing "U = 149 597 871 km" for the third time, with the red marker.