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.
The Aurora Borealis, otherwise known as the Northern Lights, is a physics phenomenon that can be magical to observe, striking onlookers to wonder about the cause of the whimsical lights that dance overhead. This extraordinary display is caused by charged particles being expelled into space from the sun.