EnvironmentTime Travelers From the Future Are Not on TwitterAn attempt to locate chrononauts on the Internet has failed.By Ryan Jacobs
EnvironmentThe Mystery of John Titor: Hoax or Time Traveler?A person named "John Titor" started posting on the Internet one day, claiming to be from the future and predicting the end of the world. Then he suddenly disappeared, never to be heard from again.By Rick Paulas