Five UFO revelations from NASA's historic meeting. A new era of transparency

US authorities have examined about 800 reports of unidentified flying objects collected over the decades, but only a small fraction of them are truly unexplained, a group of researchers claims.

According to the BBC, NASA established a panel of experts last year to describe its work on what it refers to as unidentified anomalous phenomena (UAP).

UAPs are defined as occurrences “that cannot be identified as aircraft or known natural phenomena from a scientific perspective.”

The expert group held its first public meeting on Wednesday.

Many observations can be explained — others remain a mystery

“We have 50 to 100 new reports every month,” said Sean Kirkpatrick, director of the Defense Department’s All Domain Anomaly Resolution Office (AARO).

But he said the number of such incidents that are “possibly truly anomalous” represent between 2% and 5% of the entire database.