The document discusses the possibility of extra terrestrial life and provides examples of reported UFO sightings. It defines aliens as life that does not originate from Earth and notes that Kenneth Arnold reported seeing unusual flying objects in 1947. The document also mentions the Roswell UFO incident of 1947 where an object crashed near Roswell, New Mexico that some claim was an alien spacecraft. While many viewed reports of aliens as just stories, the document notes that recent CIA reports admitting the existence of UFOs may have changed the views of some skeptics.