In Maine, vision testing is required at the first renewal after driver's 40th birthday, then at every second renewal until age 62, and thereafter at every renewal. In Oregon, vision testing is required every 8 years for drivers 50 and older. In Illinois and New Hampshire, applicants 75 and older must take a road test.
Bottom line: When charged particles from the sun strike atoms in Earthâs atmosphere, they cause electrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights.
Under normal circumstances, the northern lights occur in a narrow band around 10 to 20 degrees of latitude from the North Pole. In North America, this restricts their range to parts of Alaska, northwest Canada and Greenland. In Europe, Norway and parts of Siberia also experience the northern lights on occasion. However, changes in the Earth's geomagnetic field and solar activity can alter the range and activity of the aurorae.