Fall and winter are the best times for viewing the shimmering curtains of light known as aurorae or northern lights. They form when charged particles from the Sun strike atoms of nitrogen and oxygen far above the surface, causing them to glow.
Fall and winter are the best times for viewing the shimmering curtains of light known as aurorae or northern lights. They form when charged particles from the Sun strike atoms of nitrogen and oxygen far above the surface, causing them to glow.