AURORA BOREALIS

streamers or bands of light appearing in the northern skies at night, especially in the polar region, probably due to the impact of streams of particles from the sun on the upper regions of the Earth's atmosphere. —5th ACC Vol 2 Glossary (Final approval 7/12/89), Scott, Foresman Dictionary

streamers or bands of light appearing in the northern skies at night, especially in the polar region, probably due to the impact of streams of particles from the sun on the upper regions of the Earth's atmosphere.