During the trajectory of Apollo 8, what unique visual experience did the crew have while orbiting the Moon?

Answer

Looking back at the entirety of Earth suspended in space

Due to the required trajectory around the Moon, the crew experienced a period where they were looking back from behind the Moon, viewing the entirety of Earth hanging in space, which was a profound shift in perspective.

During the trajectory of Apollo 8, what unique visual experience did the crew have while orbiting the Moon?
astronomyMoonspace explorationdark side