The controversial observations indicated the presence of large unidentified objects measuring several miles across.
The pilots of a Mokulele Airlines flight recently had to take evasive action after an unidentified object 'popped' out of a cloud.
China has deployed an unidentified payload in orbit around the Earth using its secretive Shenlong space plane.
One of the more intriguing inclusions in the latest batch of files shows an alleged encounter with an unidentified object.
The body of the unidentified individual had been discovered wearing a wetsuit in a reservoir in a remote part of Wales.
The research found evidence of unidentified lights in the sky above nuclear test sites during the Cold War.
Sightings of the unidentified balloons have prompted fears of clandestine surveillance by a foreign power.
The incident involved sightings of an unidentified object followed by an extensive search-and-rescue operation.
The meeting will include multiple witnesses and experts related to the field of unidentified aerial phenomena (UAP).
Viral footage of a strange object in the sky has left social media users scratching their heads.
The mysterious visitor showed up unexpectedly during an angling session posted to a fishing YouTube channel.
An unidentified object was seen by numerous witnesses across multiple US states earlier this week.
A skull found by farmers almost 70 years ago is at the center of an ongoing paleoanthropological mystery.
Efforts to detect unidentified aerial phenomena remain ongoing at one of America's most prestigious universities.
An unidentified animal that was captured on camera has left local residents and wildlife officials searching for answers.
The problem has become so bad that the unidentified stink has been waking people up in the middle of the night.
For years, the small town of Bonnybridge in Scotland has become synonymous with sightings of unidentified flying objects.
Unidentified drones are now being seen with such regularity that even the FBI is struggling to solve the mystery.
The unidentified object quickly zoomed past the frame during filming of a news report over Manhattan.
The hearing will focus on reports of 'unidentified anomalous phenomena' and hear from multiple witnesses.