After the end of World War II, both the Allies and the Germans held the view for decades that German scientists had failed to construct an atomic bomb. It was only after reunification that various authors, often based on eyewitness accounts, presented a contrary narrative. According to this, it seemed that the Germans had succeeded in developing and testing at least one nuclear weapon. This is also supported by reports from the Soviet intelligence service from 1945. In the present book, using ground-penetrating radar images, it is demonstrated for the first time that bombs produced in the German Reich were of a non-conventional nature. Through detailed recordings, the authors show that the bombs captured were not conventional explosives.