And it all starts in the nucleus! (Warning: any discussion of the nucleus excludes prokaryotes. The nucleus is a eukaryotic song and dance number, and don't you forget it.) Most eukaryotic cells have a nucleus throughout their entire life cycles, but there are a few notable exceptions.
The northern lights are strongest when an active area on the sunâs surface faces Earth. Spectacular displays of the northern lights thus occur at roughly 27-day intervals, the time it takes the sun to rotate once. October, February and March are the best months for seeing the aurora borealis.
Scotland, United Kingdom. You donât have to travel far to be within eyesight of the Northern Lights. In February this year, the coast of Caithness in the far north of Scotland was one of the best places to see the Aurora Borealis â check out the seriously awesome video below.