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.
The official Aurora season in Iceland is from October till March but like with so many other things that have to do with Icelandic nature itâs not something you can say with any certainty. For example, the first Northern Lights of the season in ReykjavÃ­k this year were seen around the middle of August. The ideal conditions to see them are when itâs cold and dark outside and the Aurora activity is high. The cold per se is not an factor but the sky has to be clear which it usually is on very cold nights.