Apollo 15 astronaut Al Worden knew what it felt like to be on the far side of the moon. For three days back in 1971, he flew alone in his command module, Endeavor, while two crewmates worked thousands of miles below on the surface of the moon. His only companions were the stars overhead that he remembers as being so thick they seemed to wrap him in a sheet of light.

As the sun went down on the Old Testament character Jacob’s first night away from home he too was profoundly alone, but for a different reason. He was on the…