Analyzing and understanding the potential threats posed by UAP is an ongoing collaborative effort involving many departments and agencies."

The review includes hundreds of cases of misidentified balloons, birds and satellites as well as some that defy easy explanation.

The latest Pentagon report on UFOs has revealed key hotspots for sightings, along with how many cases have been resolved and remain unresolved.

On Wednesday, a new slate of witnesses provided fresh testimony to Congress on UFO sightings and what the government may (or may not) know about them.

Congress met Wednesday to discuss "Unidentified Anomalous Phenomena" in order to "further pull back the curtain on secret UAP research programs conducted by the US government, and undisclosed findings they have yielded.

A former Defense Department official has claimed that the United States has conducted programs aimed at retrieving UFOs to study and understand extraterrestrial technology. On Wednesday, a congressional hearing was held as part of an investigation into UFOs,