On July 16, 1965, a massive alien spacecraft from the Zeta Reticuli star system landed at the Nevada test site north of Las Vegas. Following a plan set in motion by President Kennedy in 1962, the alien visitors known as the Ebens welcomed 12 astronaut-trained military personnel aboard their craft for the 10-month journey to their home planet, Serpo, 39 light-years away. In November 2005, former and current members of the Defense Intelligence Agency--directed by Kennedy to organize the Serpo exchange program--came forward to reveal the operation, including details from the 3,000-page debriefing of the 7 members of the Serpo team who returned after 13 years on the planet. Working with the DIA originators of the Serpo project and the diary kept by the expedition’s commanding officer, Len Kasten chronicles the complete journey of these cosmic pioneers, including their remarkable stories of life on an alien planet, superluminal space travel, and advanced knowledge of alien technol