If Dark Matter Can’t Be Seen, What About Ghosts?

Every ghostly horror movie has “the scene.”

It usually comes early in the story, like in The Sixth Sense: The protagonist walks into a room, like the kitchen, and all the cabinets and drawers are open. He’s puzzled. He doesn’t remember leaving it this way. So, he closes all the doors and all the drawers and walks out. A minute later he comes back in — and everything’s open again.

Most scientists, myself included, are pretty skeptical of ghost stories. But after attending a recent lecture on the “dark universe,” I got to thinking: How are we physicists different from anyone else telling ghost stories?

Full Article