probes only travel so far before they disappear. I have already tried your suggestion and they don't even get close.I have not tried this myself but can you not go into the gap to get close enough for space-darts at the GG but fire probe(s) outwards towards the ring?
I didn't try probing the GG from my position in the screenshot, I know that's impossible. The screenshot was to show the gap between the 2nd and 3rd rings of the planet. The closest I got was positioning myself near an ice body the was orbiting the GG, but still inside the radius of the 3rd ring. However the probes still didn't fly far enough before disappearing to scan the 3rd ring.You have to get closer to the ring.