William Shatner, shown here immediately after leaving the Blue Origin capsule that took him into space and back, cannot hold back his tears or his emotions as he begins to recount his experience. (Credit: Global News TV)

William Shatner cried upon returning from space. The “overview effect” explains why

The “overview effect”, experienced by astronauts when they view the Earth from outer space, irrevocably changes your perspective as a human.

In all of human history, only a few thousand people have ever reached the final frontier…