If you missed seeing the Rosetta Destruction by Comet 67P/Churyumov-Gerasimenko after its 2 year exploration, you can watch it again complete with all the commentary and analysis the leading scientists can bring to bare on the project. It was a magnificent run, and a huge amount of science was done, questions answered, every answer spawning 2 or more new questions. Watch the program and you might just begin to understand the vastness of even our local space here within the Heliopause, a tiny percentage of the distance even to the closest star.
