Archive index
Investigations
Browse all dossiers in the archive. Each investigation compiles documented facts, supporting and contradicting evidence, open questions, and source references.
31 DOSSIERS
DB Cooper
The 1971 hijacking of a Northwest Orient flight by a man calling himself D.B. Cooper, who parachuted from the plane with $200,000 and was never found.
Roswell Incident
The 1947 recovery of unknown debris near Roswell, New Mexico, which sparked decades of UFO speculation and government secrecy allegations.
Dyatlov Pass Incident
The 1959 mysterious deaths of nine Soviet hikers in the Ural Mountains, whose tent was found cut open from the inside and bodies showed unusual injuries.
Tunguska Event
A massive explosion on June 30, 1908, near the Tunguska River in Siberia that flattened 2,000 square kilometers of forest, whose cause remains debated.
Belgian UFO Wave
A series of UFO sightings over Belgium in 1989-1990, including a massive triangular craft tracked by military radar and jet fighters.
Oak Island Mystery
Stories of buried treasure and mysterious artifacts on Oak Island, Nova Scotia, drawing treasure hunters for over 200 years.
Rendlesham Forest Incident
A series of reported UFO sightings and landings in December 1980 near RAF Woodbridge in Suffolk, England, involving U.S. military personnel.
Roanoke Colony
The 1587 English settlement on Roanoke Island that vanished, leaving only the word 'CROATOAN' carved into a post.
Voynich Manuscript
An illustrated codex from the early 15th century written in an unknown script and language that has defied all attempts at decipherment.
Phoenix Lights
A mass UFO sighting on March 13, 1997, over Phoenix, Arizona, witnessed by thousands of people including the state governor.
Mary Celeste
An 1872 merchant ship found abandoned and adrift in the Atlantic with no explanation for the crew's disappearance.
Tamam Shud
A 1948 unidentified man found dead on Somerton Beach in Adelaide, Australia, with a cryptic 'Tamam Shud' note and an unlisted phone number.
Tic Tac UFO
A 2004 U.S. Navy encounter off the coast of San Diego involving multiple military aircraft tracking an unidentified object with impossible flight characteristics.
Wow! Signal
A strong, narrowband radio signal detected in 1977 by the Big Ear radio telescope, lasting 72 seconds and never detected again.
Battle of Los Angeles
A 1942 anti-aircraft artillery barrage over Los Angeles during WWII, triggered by unidentified objects that remain unexplained.
Sodder Children
The 1945 disappearance of five of ten Sodder children in a house fire in West Virginia, with evidence suggesting they may have been abducted.
Kecksburg Incident
A 1965 incident in Kecksburg, Pennsylvania, where a fireball was seen and military personnel were observed searching for an object in the woods.
Cash-Landrum Incident
A 1980 UFO encounter in Texas where a family reported being irradiated by a diamond-shaped craft escorted by military helicopters.
Fast Radio Bursts
Brief, intense pulses of radio energy from distant galaxies, first detected in 2007, with origins still being investigated.
Puma Punku
An ancient Bolivian archaeological site with precisely cut stone blocks, some weighing over 100 tons, challenging explanations of ancient engineering capabilities.
Fermi Paradox
The contradiction between the high probability of extraterrestrial civilizations and the lack of evidence for or contact with such civilizations.
Flannan Isles Mystery
The 1900 disappearance of three lighthouse keepers from the Flannan Isles in Scotland with no explanation.
Ariel School Encounter
A 1994 UFO sighting at Ariel School in Ruwa, Zimbabwe, where 62 children reported seeing a landed craft and strange beings.
Yonaguni Monument
A submerged rock formation off Yonaguni Island, Japan, that some argue is a man-made structure dating to 10,000 BCE.
Dancing Plague
A 1518 phenomenon in Strasbourg where hundreds of people danced uncontrollably for days, with some dying from exhaustion.
Baghdad Battery
A 2,000-year-old artifact from Iraq resembling a galvanic cell, raising questions about ancient electrical knowledge.
Mandela Effect
A phenomenon where large groups of people remember events or facts differently from how they occurred, named after Nelson Mandela's supposed death in prison.
Taos Hum
A persistent low-frequency humming sound reported by residents of Taos, New Mexico, since the early 1990s, with no confirmed source.
Bloop
An ultra-low frequency underwater sound detected by NOAA in 1997, originating from a source larger than any known animal.
Green Children of Woolpit
A 12th-century account of two green-skinned children who appeared in Woolpit, England, speaking an unknown language and claiming to come from a land called St. Martin's Land.
Lead Masks Case
A 1966 mystery in Brazil where two men were found dead wearing lead masks with no clear cause of death or explanation.