This time, as we're riding along next to the comet, the most logical way to end the mission is to set Rosetta down on the surface, but there is still a lot to do to confirm that this end-of-mission scenario is possible. We'll first have to see what the status of the spacecraft is after perihelion and how well it is performing close to the comet, and later we will have to try and determine where on the surface we can have a touchdown.