A Close Encounter of the fifth kind is a close encounter of a UFO event that involves direct communication between aliens and humans.[1] This type of close encounter was named by Steven M. Greer's CSETI group and is described as bilateral contact experiences through conscious, voluntary, and proactive human-initiated cooperative communication with extraterrestrial intelligence. [2][3]


  1. What're close encounters of the first, second, third, fourth and fifth kind?. S.P.S. Jain. The Times of India. 22 March 2003. Retrieved 4 April 2014.
  2. Haines, Richard (1999). "CE-5 Close Encounters of the Fifth Kind.". Sourcebooks, Inc.. 
  3. McCarthy, Paul (December 1, 1992). "Close encounters of the fifth kind. (communicating with UFOs)". Omni. Archived from the original on 2007-05-12. Retrieved 2007-05-12. 


  • Informania: Aliens, page 19