"Battleship Earth: A Sage of the Year 3000" by L. Ron Hubbard - St. Martin's Press, NY - 1982 first American edition first printing - 18cmx151cm - condition: good, in original dustwrapper with some wear Battlefield Earth: A Saga of the Year 3000 is a 1982 science fiction novel written by L. Ron Hubbard, founder of Scientology. He also composed a soundtrack to the book called Space Jazz. In the year 3000 AD, the Psychlos, an alien race, have ruled Earth for a millennium. The Psychlos discovered a deep space probe (suggested to be Voyager 1) with directions and pictures mounted on it and the precious material, gold, which led them straight to Earth. Psychlos stand up to 9 feet (2.7 m) tall and weigh up to 1,000 pounds (450 kg). They originate from Psychlo, a planet with an atmosphere radically different from Earth, located in another universe with a distinct set of physical laws characterized by a lack of elements that are radioactive. Their "breathe-gas" explodes on contact with even trace amounts of radioactive material, such as uranium. The Psychlos have been the dominant species across multiple universes for at least 100,000 years. After one thousand years, humanity is an endangered species numbering fewer than 35,000 and reduced to tribes in isolated parts of the world while the Psychlos strip the planet of its mineral wealth.