Neonneurons, You asked 2 questions that are not related. Celestial bodies spin because of conservation of the angular momentum of the nebula they started life in. Electrons, on the other hand, do not spin (jjw is not as limited as he thinks). Spinning electrons were invented in the 1920's by 2 physicists who won the Nobel prize for their work. There is, however, no actual data or evidence that electrons spin. There is, in fact, no evidence that an electron is a singular particle. Instead, it appears to be a cloud of particles.