A jet crosses the path of a sun pillar seen from the parking lot of Glenbrook North High School Saturday. Sun pillars happen when a strong light source, in this case it is the setting sun, reflects off tiny ice crystals suspended in the air. The bitter cold and bright sun were the perfect conditions that day. This sun pillar lasted less than 10 minutes and got stronger as the sun went lower.
John Starks/jstarks@dailyherald.com