Why, catching an astronaut in mid-spacewalk working on it.
These shots were taken by Ralf Vandebergh in his backyard with a 10-inch telescope.
Remember when those removed introductory scenes from Star Wars got out? The scenes where Luke is casting his gaze skyward and watching the space battle in which Vader captures Leia? I remember criticism that the scene was unrealistic because Luke wouldn't be able to see the battle from the ground.