If you live in Barrow, Alaska there was cause to celebrate last week - because the sun came up. That event seems commonplace to most of us, but because Barrow is so far north, the sun sets in late November and doesn’t rise again until late January – around two months of total darkness.But the longest stretch of darkness is at the South and North Poles. Because of the Earth’s tilt on its axis, each pole experiences approximately six straight months of darkness – from September to March at the North Pole, and March to September at the South Pole.You...
