The 20th of July 1969 was a big day in history. Do you know why, Sam?Wasn't that when Neil Armstron first set foot on the Moon?Right. But it's often forgotten that some of the most dramatic photographs taken on the Apollo space mission weren't of the Moon at all- they were of Earth, it wasn't until we went to the Moon that we really saw the size of Earth's oceans and named ourselves, the Blue Pl..