International Space Station (ISS) Timelapse Assembly Animation Even though it's arguably the most expensive thing ever constructed by humans (estimated at $150 billion), the U.S. could build 5 International Space Stations with its military budget EVERY SINGLE YEAR. That is not taking into account building cost of each consecutive one would be less and less. By the end of 2008, the U.S.
Global ship traffic seen from space If you sail, cruise, or voyage more than 100 miles offshore of a 1st world nation, then it is these ships (these points / streaks of light), near your route that will render assistance or rescue, NOT a "coast guard", etc....Assuming you DO have both a VHF-DSC radio and HF-DSC radio to signal these vessels!!!