Before the space race, we could only imagine what our planet looked like from space.

Then, in 1972, the crew of Apollo 17 took the famous ‘Blue Marble’ photograph, the first picture of the entire Earth taken by an astronaut.

This documentary examines the profound effect that gaining this new perspective had on us, and features astronauts including Tim Peake exploring how we as a species have changed the face of our world for better and for worse.