Caelum Incognitum — The interactive encyclopedia of ufology
Cover-up
Hypotheses & theories
The thesis that governments hold proof of an extraterrestrial presence and are hiding it. It is fed by real military secrecy, controversial documents (MJ-12) and testimony from former service members. Opened archives (FOIA) have revealed monitoring and lies about ordinary programs, not a cover-up of extraterrestrial origin.