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 a PhD in theoretical particle physics, this book defines one of the first scientifically credible studies of UFOs in the modern era. Anomaly reveals new results derived from radar, optical sensors, and scientific instruments, rather than speculating on unreliable eyewitness testimony. This scientific approach provides the reader with clear and reliable answers, something that is desperately needed in the murky field of UFOs.