Afterwards, in order to prepare for the engine ignition, Hayabusa did some warm-ups.Somehow or OtherAnd so Hayabusa's tightrope journey back to Earth continues.In any case, we should run a variety of tests in order to figure out a solution.What is a "good thing" is necessarily what will "work the best". If we could only somehow light one of the other engines...Yeah it is, but it won't do.Engine D just won't hold up until she gets to Earth.Hey!Hoh!A single ion engine is only operationally effective for around 15,000 hours.As things stand, only Engine D hasn't exhibited any problems yet.Well, that's done for.Isn't that a good thing?With this, her Engine C was successfully ignited.Yes Ma'am!