So along this same line the PSP Parker Solar Probe is exploring our gravity well in the other direction, and in some ways will be more gone forever than voyager

So along this same line the PSP Parker Solar Probe is exploring our gravity well in the other direction, and in some ways will be more gone forever than voyagers. I think the Jovian Moon Io is very low, look up an eclipse photo from Juno; it would be key to exploring low Jovian orbit, just like Venus kicks PSP and Jupiter kicked Voyagers.