If the top video is black then they're near, or at, the dark side of the earth.
Every now and then you'll see the moon. It'll be a small disk.
You can enlarge it to, effectively make it a live "screen saver".
They're at an altitude of 252 miles (405 km), and traveling at 17,165 mph (27.624 km per hour).
Worth a look.

https://eol.jsc.nasa.gov/ESRS/HDEV/