Earths magnetic is caused by currents of electricity that flow in the molten core. "These currents are hundreds of miles wide and flow at thousands of miles per hour as the earth rotates. The powerful magnetic field passes out through the core of the earth, passes through the crust and enters space." - credit NASA Earth's magnetic field deflect dangerous ionizing particles thus enabling life to exist, so imagine if we were no longer protected! IF YOU ENJOY THIS SITE PLEASE TELL OTHERS ABOUT US...SHARING IS CARING Start the discussion, leave a comment below