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  1. I barely knew anything about this mission and now I’m intrigued.

    * First, the way that the solar panels were designed, obviously to unfold to a very large area, is neat and ingenious. [This picture](https://pt.wikipedia.org/wiki/Jupiter_Icy_Moons_Explorer#/media/Ficheiro:Juice_launch_kit_cover_close-up.png) makes quite clear what they did.

    * Second, like many probes, it uses a lot of gravity assists to save fuel, as shown in [this diagram](https://en.wikipedia.org/wiki/Jupiter_Icy_Moons_Explorer#/media/File:Juice's_journey_to_Jupiter_ESA25460391.jpg). That explains why a probe sent to Jupiter is passing over Venus.

  2. It’s interesting how often these issues occur even on multi billion dollar missions. We recently also had Psyche losing one of its thrusters. Designing an interplanetary probe is hard.