You may have noticed that sunrises and sunsets seem to be more vivid in winter. There are some reason for that! Cooler temperatures allow for better air circulation. When the air can circulate more freely, dust particles and pollutants are scattered more effectively. The angle of the earth to the sun may be the biggest reason. Blue light has a short wavelength, so it gets scattered easiest by air molecules, such as nitrogen and oxygen. Longer wavelength lights -- reds and or

Don't they look like they are dancing down from the clouds to the ground? Look closely and zoom in. They are so intricate and beautiful! How is a snowflake formed? It's a simple recipe that includes: Water vapor, subfreezing clouds, and a piece of dust or salt. When these are all present, water vapor crystallizes around the particle. As it falls to Earth, it grows into six-sided (hexagonal) crystals. Their journey to the ground determines what they look like when they get th