Throat lacerations, perforated organs, and pierced hearts are just some of the complications that performers can suffer when swallowing swords, but despite these dangers, only 29 deaths from this ancient art form have been recorded in the past 150 years.

When she was just four years old, Shanti Devi began telling her parents eerily specific details about her old life in a town 75 miles from where she was born — and a place she'd never been to before.

James Morison claimed that his vegetable pills could cure anything from smallpox to dysentery — and thousands of British people believed him.

As soon as humans had telescopes strong enough to study Mars in detail, we've asked ourselves two questions: Does Mars have life? How can we establish contact?