Apollo 10 Rocket

The Apollo 10 crew are also the humans who have traveled the farthest away from home, some 408,950 kilometers (220,820 nmi) from their homes and families in Houston. While most Apollo missions orbited the Moon at the same 111 kilometers (60 nmi) from the lunar surface, the distance between the Earth and Moon varies by about 43,000 kilometers (23,000 nmi), between perigee and apogee, throughout each lunar month, and the Earth’s rotation makes the distance to Houston vary by another 12,000 kilometers (6,500 nmi) each day. The Apollo 10 crew reached the farthest point in their orbit around the far side of the Moon at about the same time Earth’s rotation put Houston nearly a full Earth diameter away.