Check out this gif of the orbital maneuvers required for Rosetta to reach its destination: https://i.imgur.com/TUkKuhf.gif https://i.imgur.com/TUkKuhf.gif Thi

Check out this gif of the orbital maneuvers required for Rosetta to reach its destination: https://i.imgur.com/TUkKuhf.gif https://i.imgur.com/TUkKuhf.gif This probably won't be very impressive in a few hundred years, but for now it's a remarkable engineering achievement.