[For example](https://www.nasa.gov/sites/default/files/styles/side_image/public/thumbnails/image/s84-27018.jpg?itok=iwWtIpvc)
In: Earth Science
That’s just to do with the camera settings. If you set the exposure to long enough that you’ll see the stars, then everything in the foreground (astronauts, space shuttles, etc) will be really bright and washed out.
In these photos, they don’t want you to see the stars, they want you to see the astronauts.
You’re probably comparing these photos to what stars you’d see at night time. But these photos aren’t taken at night, they’re in direct sunlight. The stars are visible but they’re much dimmer than you might expect because of the sunlight, and that’s why you’d need pretty long exposure times to have them show up on camera.
You can also try this yourself. Next time you’re out at night, take a photo with your phone and see if the stars that you can see are visible on the photo. They probably won’t be, except for maybe the brightest stars. Obviously, the cameras used for space photography are more powerful than your phone camera, but it’s the same principle.
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