Ghosts are said to haunt places where they lived, where they died, or somewhere with a special meaning to them, like a place they frequently visited. But what happens if someone dies in space? There are no buildings for a spirit to cling on to, there is no ground, there's not even air that a spirit could attach itself to. There's just empty space.

Perhaps if someone died aboard a spacecraft, the spirit could haunt that vessel in the same way that those who die at sea are sometimes claimed to have haunted their ships. We've all heard the term "ghost ship," but a "ghost space ship" is a new concept.

Let's assume a spirit could haunt a fixed point in space. Perhaps an astronaut died during a mission halfway to Mars aboard a space shuttle. Within minutes of their deaths, the point of death would be thousands of miles away from...