Being able to see something magnificent or majestic for yourself is one thing. You can tell people about it but not all will be convinced about what you've seen and whether you actually saw it, or if you're just making it up.
But for the crew of Apollo 8, especially Bill Anders, who was the mission photographer, they had seen our world like never before and they were able to capture that moment for everybody else to behold.
Before that moment 50 years ago, no one had seen an earthrise. The sight sent Bill Anders, the mission photographer, scrambling for his camera.
What he captured became one of the most influential images in history. A driving force of the environmental movement, the picture, which became known as Earthrise, showed the world as a singular, fragile, oasis.
Anders talking to the Guardian about it said:
“It didn’t take long for the moon to become boring. It was like dirty beach sand,” Anders told the Guardian. “Then we suddenly saw this object called Earth. It was the only colour in the universe.”
(Image credit: Wikimedia Commons)