EcoWatch: A now-famous 1972 photo of Earth taken by Apollo 17 astronauts from 45,000 kilometres away became known as the blue marble. The late scientist Carl Sagan described a 1990 picture taken from six billion kilometers away by the unmanned Voyager 1 as a pale blue dot."
The vision of Earth from a distance has profoundly moved pretty much anyone who has ever seen it. When we look down at the earth from space, we see this amazing, indescribably beautiful planet, International Space Station astronaut...