There is an interesting video on Vimeo that io9 brought to my attention. It has a voice over by Carl Sagan and it depicts astronauts exploring the solar system at various locales. Apparently all of the locales are real. It is called Wanderers, you should check it out.
I find it interesting that even an atheist like Sagan was struck by the sense of adventure and wonder that exploring space entailed even though his worldview would probably struggle to ground any reason for doing so. Anyway, give it a watch it is wonderful.