Ключевые слова: activity, adrenaline, alaska, antarctic, arctic, astronaut, atmosphere, aurora, borealis, canada, cold, dark, energy, expedition, field, glacier, green, greenland, ice, iceland, illumination, ionosphere, lapland, lights, magnetic, magnetosphere, north, northern, phenomenon, polar, radiation, scandinavia, sky, snow, solar, spitsbergen, stars, sun, winter,