Especially exciting was the discovery that Europa is largely a slush ball of water. Where there is water, there is a good chance for life. Life can be found in the most unusual places. It was recently discovered in the newest of the Hawaiian islands, which is still underwater, but actively rising with a constantly erupting underwater volcano. Organisms were discovered underwater deriving their energy directly from this volcanic source.
Astronomy is one of the most universal of sciences.
Chemistry and nuclear physics determines the composition of the stars. Planetary observers need to have a good understanding of geological sciences. Better brush up on thermodynamics, and meteorology. Those biologists who are studying the possibilities of life need to tie all of the above together. The latest observing platforms, and techniques are beginning to discover primordial disks around nearby stars.