Neptune and Uranus?

 Watery Worlds!

Missions to these two cold giants is not planned for the near future and the Hubble Telescope is to spend it last few years taking regular observations?

Recently it has been discovered that these two giant worlds are made of water, but as to their structure this is still not known! Much of this knowledge is coming from the Juno probe that is orbiting Jupiter and revealing its internal structure, which may act in a similar way for all four giants?

Uranus is covered in cloud and looks like the cue ball on a snooker table, there is really nothing to see accept that it lies on its side meaning only one pole is lit and the other remains dark. The strange thing about the belts and Moons of this world is that they are hard to see because of unknown dark materials?

Meanwhile Neptune is blue with wispy high clouds and a black spot that moves and changes or may be replaces by another every so many years? Neptune has one of the largest Moons in the Solar system that of Triton, which many now believe may be a captured Pluto type world?

Triton is believed to be active with volcanism and other mysterious features discovered by Voyager in our only fly past! One thinks with so many wonderful things to discover that money should be put aside to build probes to visit and study the Moons and rings if nothing else, I think we will be surprised by what we discover there too?