Building Starship Scenes

Every scene starts with a vision: what exactly are the PCs doing inside of a starship? Are they battling an enemy starship in the atmosphere of a planet or attempting to escape the jaws of some predatory interstellar megafauna before becoming trapped inside? Designing these encounters should always begin with a basic concept of what situation the PCs will be part of, how to overcome the scene, and how the scene ultimately concludes.