M-Metal

The M-Metal was a radioactive metal, of which a small amount was accidentally discovered in the 64th Century in a meteorite which fell to Earth. In 6363, scientists were able to use the M-Metal to built a time machine. However, its radiation was losing intensity, and only one trip through time could be made. Abra Kadabra invaded the laboratory in which the machine was being kept, and used it to travel to the 20th Century.