snotpocket

What instruments are available now (that weren't when NH was designed and launched) that you wish were on the craft?

Bonus question: would it make any sense at all to launch followup craft that simply would act as communication relays/signal boosters between deep space probes and Earth, to allow higher communication rates?

Re planet 9, is it plausible that a passing star caused these KBOs to orbit like this?

Or can we rule that out based on the relatively low eccentricity of the orbits of the first 8 planets?