March 21st
6 documented paranormal events occurred on this day, spanning 1959 to 2023. Browse hauntings, UFO sightings, cryptid encounters, and unexplained phenomena recorded throughout history.
Featured cases
2023 UAP Sighting — AARO Records (D206P10)
Unknown location
AARO successfully declassified data and full-motion videos of UAP events for a public congressional hearing. The declassification process involved multiple stakeholders and information owners. AARO is working to standardize and streamline this process to increase transparency.
2023 UAP Sighting — AARO Records (D212P10)
Unknown location
AARO successfully declassified data and full-motion videos of UAP events for a public congressional hearing. The declassification process involved multiple stakeholders and information owners. AARO is working to standardize and streamline this process to increase transparency.
Vladimir Cone-Shaped UAP Sighting
Vladimir Oblast, Russia, Soviet Union
A Soviet Air Defense radar station outside the city of Vladimir tracked a slow-moving cone-shaped object at altitude that pilots scrambled to intercept could see but could not approach.
Michigan Swamp Gas Controversy
Dexter, Michigan, USA
Dr. J. Allen Hynek's 'swamp gas' explanation for Michigan UFO sightings sparked national outrage and became a turning point in his career, eventually leading him to become a UFO advocate.
Detroit, Michigan UFO Sighting (March 21, 1960) — FBI Files
Detroit, Michigan
An investigation into a 1960 Detroit sighting involving unidentified flying objects and photographic evidence was released via the PURSUE program.
Every event recorded on this day
- 2023 UFO 2023 UAP Sighting — AARO Records (D206P10) Unknown location
- 2023 UFO 2023 UAP Sighting — AARO Records (D212P10) Unknown location
- 1989 UFO Vladimir Cone-Shaped UAP Sighting Vladimir Oblast, Russia, Soviet Union
- 1966 UFO Michigan Swamp Gas Controversy Dexter, Michigan, USA
- 1960 UFO Detroit, Michigan UFO Sighting (March 21, 1960) — FBI Files Detroit, Michigan
- 1959 UFO Grand Blanc, Michigan UFO Sighting (March 21, 1959) — FBI Files Grand Blanc, Michigan