Thomas Pesquet posted a photo:

"""An island in the Mediterranean, I don’t exactly remember where. I like the visible effects of water current. Crazy how much you see when you take a step back

The red sea



Some city, could it be Riyad? That would explain the black spot in the middle of the city on our night picture! Very big mosque with 6 minarets"""

Credits: ESA/NASA—T. Pesquet