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

The report consisted of hundreds of new cases of misidentified balloons, birds, and satellites, including some that cannot be explained in easier terms, such as a close call between a commercial airliner and an unidentified object near the New York coast.

The Pentagon has released its annual report on UFO sightings, or what it officially calls unidentified anomalous phenomena (UAPs) — and found 21 particularly curious incidents.

The latest report from the Pentagon's UFO office has revealed hundreds of new sightings, including about two dozen "particularly interesting cases." However, there is still no proof of alien activity.

Over 700 new cases were just found in the Pentagon’s UFO report, 21 of which the agency says it can’t explain.

There is something out there,” said Republican Rep. Andy Ogles of Tennessee. “The question is: Is it ours, is it someone else's, or is it otherworldly?”