In 1969, for the first time ever, people saw images of the Earth taken by astronauts orbiting the moon. This was the first time we could see the totality of our planet. Seen from space, we could see the Earth as one living system. We could see how beautiful, but also how fragile the Earth is, and her atmosphere too—just a tiny thin layer protecting us all. To the astronauts, the Earth appeared as a dynamic, living, and constantly glowing jewel. When I first saw those pictures, I was amazed. I thought, “Dear Earth, I didn’t know that you were so beautiful. I see you in me. I see myself in you.”