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.
Follow Our Top 8 Tips for Viewing the Northern Lights/Aurora Borealis in Minnesota. 1  Check the forecast. The best viewing is during clear nights with little to no moonlight. 2  Stay up late. Night owls have the best chance of catching this incredible phenomenon. Best times to see them is often between 9pm â 4am. 3  Bundle up.