Geostationary Orbit - Do You Know When the Onboard Engines Run Out of Fuel?

The Rosetta spacecraft worked beautifully but it actually recovered during his journey of ten years not everything went perfectly well there was some leakages in some part of the propulsion system. The devices inside the spacecraft that help control which way it's pointing wheels that are turning continuously were starting to get a bit sticky they were starting to show some noise as it was flying along. We understood what we had to do to get them a little bit hotter a little bit warmer to keep them cozy and it will work fine in the case of filly the harpoon didn't work thank you okay our next question hi thanks so much for coming here tonight our question about the geostationary I'm curious when the the