Lazar has claimed that the propulsion of the studied vehicle ran on an antimatter reactor and was fueled by the chemical element with atomic number 115 (E115), which at the time was provisionally named "ununpentium" and had not yet been artificially created. (It was first synthesized in 2003 and later named moscovium.) He further said that the propulsion system relied on a stable isotope of E115, which allegedly generates a gravity wave that allowed the vehicle to fly and to evade visual detection by bending light around it. No stable isotopes of moscovium have yet been synthesized; all have proven extremely radioactive, decaying in a few hundred milliseconds. Lazar also said the craft was dismantled, and the reactor he studied was topped by a sphere or semi-sphere which emitted a force field capable of repulsing human flesh. He explained that the craft was split into two main levels. The reactor was positioned at the center of the upper level, with an antenna extending to the top, surrounded by three "gravity amplifiers". These connected to "gravity emitters" on the lower level, which can rotate 180 degrees to output a "gravity beam or anti-gravity wave" and that the craft would then travel "belly first" into this distortion field.