Are there ghosts?

If you believe in ghosts, you're not alone. Cultures all around the world believe in spirits that survive death to live in another realm. In fact, ghosts are among the most widely believed of paranormal phenomenon: Millions of people are interested in ghosts, and a 2013 Harris Poll found that 43 percent of Americans believe in ghosts.

The idea that the dead remain with us in spirit is an ancient one, appearing in countless stories, from the Bible to "Macbeth." It even spawned a folklore genre: ghost stories. Belief in ghosts is part of a larger web of related paranormal beliefs, including near-death experience, life after death, and spirit communication. The belief offers many people comfort — who doesn't want to believe that our beloved but deceased family members aren't looking out for us, or with us in our times of need?

People have tried to (or claimed to) communicate with spirits for ages; in Victorian England, for example, it was fashionable for upper-crust ladies to hold séances in their parlors after tea and crumpets with friends. Ghost clubs dedicated to searching for ghostly evidence formed at prestigious universities, including Cambridge and Oxford, and in 1882 the most prominent organization, the Society for Psychical Research, was established. A woman named Eleanor Sidgwick was an investigator (and later president) of that group, and could be considered the original female ghostbuster. In America during the late 1800s, many psychic mediums claimed to speak to the dead — but were later exposed as frauds by skeptical investigators such as Harry Houdini.