One day, it’s bound to happen. An astronaut dies in space.
Maybe the death occurred en route to Mars. Maybe she was interstellar, on board solo spacecraft. Or maybe the body was thrust out an airlock, a burial at space.
That corpse (or the corpse’s spacecraft) could spend anywhere from decades to millions of years adrift. It would coast listlessly in the void, until the creeping tendrils of gravity eventually pulled it into a final touchdown. Likely this corpse will burn up in a star.