The ocean looks blue because water absorbs longer-wavelength colors of light more strongly than it does blue. When the sun’s white light enters the ocean, red/orange/yellow light dissipates quickly, and mostly blues remain. That’s why divers stop seeing reds around depths of 20 feet, but blues last until it’s too dark to see. Source Source 2


Fall colors are in full swing at Moosehorn National Wildlife Refuge. The refuge – located in southeast Maine and borders Canada – protects a wilderness of lakes, bogs, forests and more. Wildlife like moose, deer and songbirds thrive in the refuge’s diverse and picturesque habitats. Photos by USFWS.