10 Rainbows (11 images)

St. Louis firefighters monitor a hose gun as a rainbow appears during a five-alarm fire in downtown St. Louis on December 8, 2011. The six story, vacant building is a complete loss as 125 firefighters fought the stubborn blaza for five hours. UPI/Bill Greenblatt

The light of the full moon mixes with the spray from Yosemite Falls to throw a beautiful lunar rainbow just before midnight on June 15, 2011 in Yosemite National Park. With snow pack at 199% of normal, the onset of summer has swollen rivers and supercharged waterfalls. UPI/Terry Schmitt

Sgt. Brent Pickar guards a gate check at the entrance to Forward Operating Base Lancer located on Ellsworth Air Force Base, in South Dakota on June 19, 2010, as two full rainbows arch over head. UPI/Donald Matthews/Army National Guard

A rainbow circles the sun during a 95 degree day in St. Louis on July 18, 2007. Forecasters say the rainbow occured because the sun peeked through high and thin clouds illuminating ice crystals. (UPI Photo/Bill Greenblatt)