“Most UAPs are presumably physical objects.”
The Office of the Director of National Intelligence of the United States published a report summarizing the available information about UFOs – “Preliminary assessment: An Unidentified aerial phenomenon.”
The report, which was prepared at the request of US lawmakers, collected data for the period from November 2004 to March 2021: during this period of time, 144 reports of the appearance of unidentified aerial phenomena (UAP) were received; in 80 of these cases various technical and electronic surveillance systems were used.
According to the conclusions of the report, “most UAPs are presumably physical objects” since they were observed using various systems, including sensors, radars, etc.
In a limited number of cases, the UAP made unusual flights, but these observations should be rechecked because the cause could be errors of instruments or observers.
“There may be numerous types of UAP that require different explanations. ( … ) UAP certainly poses a problem for flight safety and a challenge to US national security (…), if these are platforms used by a foreign rival,” the report says.