With the launch of the first privately owned space craft to service the international space station, it's time to take a fresh look at the new frontiers of space. What does the immediate future hold?
Gravity keeps us on the ground and the planets in their orbits, yet we only notice it when it's not there. In space we cheat gravity; falling just as fast but missing the ground. Now this fundamental universal force is slowly giving up its secrets.
S3E9 24 min