A NASA video from a time of great optimism about space exploration. The Apollo missions were completed and the Space Shuttle program was underway. How soon before cheap and frequent flights to space would allow the construction of O’Neal colonies and mining camps on the Moon? This visionary approach calls for tiered greenhouses in space and unlimited solar power beamed back to Earth

This is one of the most imaginative and hopeful times in human history (at around the same time as Star Trek was aired as well). I would like to believe we will move back to that mindset pretty soon.