Note: Officially the U.S. government denies that they investigate UFO reports.  Responses to requesters for UFO information from government agencies are generally told that the government quit investigating UFOs when Project Bluebook was terminated in 1969.  However, the British Ministry of Defence (MOD) acknowledges that they still collect and investigate UFO reports.  They are interested in UFO reports only for purposes of national security.  The bulleted list of documents below are a series of UFO reports released by the British MOD in 2005.

(All files are in ADOBE PDF format unless otherwise noted.)  "Get a PDF converter online."

Scientific Articles on UFOs or Related Phenomena:

• Astrophys Space Sci (2006) 302: 175-187
  The Red Rain Phenomenon of Kerala and Its Possible Extraterrestrial Origin
  
  
• Physiologia Planetarum 105: 615-624, 1999
  Dispersion of Energies in Worldwide Crop Formations

UFO Documents Obtained From the British Ministry of Defence:

• President Gerald Ford and Nelson Rockefeller Rally Behind UFO Investigation. (Read Declassified Document PDF 150K)

• Declassified 2005 Sighting Reports

• Declassified 2004 Sighting Reports

• Declassified 2003 Sighting Reports

• Declassified 2002 Sighting Reports

UFO Documents De-Classified by U.S. Government:

• Project Bluebook Fact-Book
  
  
• UFO Documents Index National Security Agency
  
  
• Project Dominic (Nuclear Testing) Report

  UFO Documents Obtained From Other Sources:

• Project Dominic Certification of Participation