Summer Solstice: 8 Things to Know
1) Why do we have a summer solstice, anyway? Okay, most people know this one. Earth orbits around the sun on a tilted axis. (Probably because our planet collided with some other massive object billions of years ago, back when it was still being formed.) So between March and September, Earth’s Northern Hemisphere gets more exposure to direct sunlight over the course of a day. The rest of the year, the Southern Hemisphere gets more. It’s why we have seasons. In the Northern Hemisphere, “peak” sunlight usually occurs on June 20, 21, or 22 of any given year. That’s the summer solstice. By contrast, the Southern Hemisphere reaches peak sunlight on December 21, 22, or 23 and the Northern hits peak darkness — that’s our winter solstice. 2) How many hours of sunlight will I get on the 21st? That depends on where you live. The farther north you are, the more sunlight you’ll see during the solstice. Alaska-based climatologist Brian Brettschneider created this terrific gui...