I’ve seen a double rainbow. Could I ever see a triple?
Double rainbows are fairly common: a second arc is produced by light reflecting twice between the inner walls of raindrops before exiting. Scientists have long assumed that a third arc would be too faint to see. But new calculations by Naval Academy meteorology professor Raymond Lee suggest that a triple rainbow could be visible under certain conditions – about 40 degrees from the Sun when it’s peeking through dark clouds. Armed with this information, rainbow chasers in Germany snapped the first-ever photographs showing a triple rainbow.
On the web: Click Photos prove triple rainbows exist to check out the first-ever photos of a triple rainbow.