"Unsolved Mysteries" has featured several UFO segments, including investigations of the Rendlesham Forest incident, Allagash Abductions, Roswell, Area 51, and the Phoenix lights. These segments often explore eyewitness accounts, government cover-ups, and the possibility of extraterrestrial life.
Episodes Season UFOS · 0/26 0/26 watched · 1991
S01E01 Bentwaters UFO 1991-09-18
American military men encounter multiple UFOs near an air force base in Bentwaters, England. more
S01E02 Allagash Abductions 1994-09-18
Four men camping in Maine believe they were abducted by aliens. more
S01E03 Crop Circles 2002-08-02
Mysterious crop circles appear in Canada. more
S01E04 Phoenix UFO 2008-10-15
Eyewitnesses claim lights seen over Phoenix are UFOs. more
S01E05 Nazca Lines 1996-02-23
Who created the mysterious lines of Peru’s Nazca plateau? more
S01E06 Mexico UFO 1994-10-21
Hundreds of people in Mexico City witness the same UFO. more
S01E07 Vancouver Lights 1990-12-12
The phenomenon involves a series of strange lights of unknown origin caught on amateur home video. more
S01E08 Roswell 1989-09-20
The 1947 incident in which a debris field was found near Roswell, New Mexico, and the subsequent claims of a crashed flying saucer and even alien bodies more
S01E09 Roswell/Area 51 Connection 1995-04-07
What crash landed in Roswell, New Mexico — and where did it come from? more
S01E10 Hudson Valley UFO 1992-09-16
Were the lights over the Hudson River Valley really UFOs? more
S01E11 Belgian UFO 1991-11-10
More than 3,000 people report sightings of a UFO over Belgium. more
S01E12 Falcon Lake UFO 1992-11-04
A man is left with mysterious burns after witnessing a UFO. more
S01E13 UFO Healing 1990-11-19
The story of Betty Cash, Vickie Cash, and Colby Cash, who claim to have been exposed to radiation from a UFO incident more
S01E14 Australian UFO 1993-09-29
An Australian pilot disappears after reporting an encounter with a UFO. more
S01E15 Missing Time 1988-12-21
Is the “missing time” phenomenon responsible for several alien abductions? more
S01E16 Socorro Close Encounter 1995-11-10
A police officer sees a UFO and its occupants land in the New Mexico desert. more
S01E17 Kecksburg UFO 1990-09-19
Thousands see a UFO in the sky above Kecksburg, Pennsylvania. more
S01E18 Texas UFO 1991-02-06
Three people suffer radiation burns after a fire-spewing UFO hovers near their car. more
S01E19 Face on Mars 1989-02-01
The Face on Mars is described as a face-type formation in the desert of Cydonia on Mars. more
S01E20 Men In Black 1997-03-28
The Men in Black segment likely featured testimonies from individuals claiming to have had encounters with mysterious individuals in black suits, often associated with UFO sightings and government cover-ups. more
S01E21 Canadian UFO 1993-01-06
After a Canadian woman witnesses a UFO landing near her home, a mysterious video tape of the event is sent to investigators. more
S01E22 Wheatfield Visitations 1992-12-02
S01E23 Life on Mars 1996-11-06
Does a meteorite found in the Antarctic hold evidence of life on Mars? more
S01E24 Interceptors 1994-01-26
UFO phenomenon from an aviation POV, positing that strange lights in the skies above Nevada and New Mexico are actually top secret military planes more
S01E25 The Blob 1996-11-08
A strange clear goo falls on the town of Oakville, Washington. more
S01E26 UFO Odyssey 1992-01-29
The UFO phenomenon has apparently ended in Wytheville, as the sightings have apparently ended, but the UFOs have never been explained. more 
