Sentences with phrase «auroral ovals»

Nearly circular bands, called auroral ovals, surround both poles of our planet.

While the cause of the auroral oval emissions is reasonably well understood, the origin of the theta aurora was unclear until now.

Alaska is one of the most celebrated places to visit the Aurora Borealis, mainly because its geographic location lies directly beneath the auroral oval.

Earth's full North Polar auroral oval, in an image taken in ultraviolet light by the U.S. Polar spacecraft over northern Canada, April 6, 1996.