“I thought that was impossible...”
These are not your father’s cameras.
CCD or film, they still have similiar ranges for daylight photographs - which do not include stars - next to a brightly lit Earth and brightly lit interior of the space station. As, of course, their other photos show in abundance, such as astronauts doing spacewalks with the station or Earth as a background next to space.
Physics is physics. And this photo is very odd.