Jan van den Hemel writes:
Did you know that NASA has a large library of 3D models and textures?
You can find a lot of their tech there as models, as well as asteroids, moon craters and more.
The models when you import them seem to be quite big, I recommend that you type "S 0.1" to scale them to 10% of their size, then press "." on the numpad to get them displayed properly in your viewport.
Remove the OBJ's material after importing and create a new one, then use the texture that is still present as the color input.