In June 2021, the U.S. National Intelligence publicly admitted that UFOs are real physical objects and that they have been penetrating restricted military airspace since at least 2004. Despite this bombshell and further recent admissions by the Pentagon, the identity of these mysterious craft remains unknown. This book brings the full scientific method to bear on this enigmatic issue.Written by Daniel Coumbe, a former research scientist at the Niels Bohr Institute in Copenhagen with...