Magical phenomena are even cooler when you understand the science behind them.
Celebrate with some amazing photos of the fluffy stuff.
These optical illusions require a mix of the right weather, eye direction, and luck.
They're easy on the eyeballs
The lack of color is caused by tiny fog droplets
A rainbow actually forms a circle. The center of the circle is always on an imaginary line between the sun and your head.
Potential to make better solar cells? Check. Improved televisions down the road? Check. Pretty? Check.
Every day for the next two weeks we're unpacking the record behind the rhetoric
Rainbow Bridge feels faraway manmade forces
A 10-year effort has finally created pumped-up fish for commercial aquaculture
A spacecraft spies a pretty phenomenon.
Plus: stunning x-rays of undersea creatures.
The cold, hard facts
We've rounded up 2014's most mind-blowing images for your viewing pleasure
Soap bubbles: now in color!
Isabella Rossellini makes insects enticing