How is it possible to travel vast distances of space without exceeding the speed of light?, How do you generate a gravitational field?, What is the power source for interstellar travel? Bob Lazar shatters the cloak of secrecy surrounding the governments most highly sensitive operations located at an area known as "S4" of Area 51 in the Nevada Air Force Range. Lazar gives a full account of Alien spacecraft the Government has hidden at S4 as well as details on their propulsion systems and how they operate. As chief physicists on project "Galileo" Lazar reveals what the Government has known and held secret for decades. The Lazar Tape - describes and portrays the components and capabilities of an extraterrestrial vehicle used for interstellar travel; a gravity propelled disc. Between December 1988 and April of 1989, a young nuclear physicist named Bob Lazar was part of the back engineering team. As part of this team his job was to understand and attempt to duplicate the propulsion systems of these craft. He did!