…why is the sky blue?
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The sky appears blue due to Rayleigh scattering, where shorter blue wavelengths of sunlight are scattered more than other colors by the atmosphere.
Why Blue Light Scatters More
- Sunlight contains all colors, but blue light has a shorter wavelength that scatters more easily in the atmosphere.
- This scattered blue light reaches our eyes from all directions, making the sky appear blue.🔗
Why Not Other Colors?
- Red and yellow light pass through more directly and are less scattered, so they dominate at sunrise and sunset.
- The effect is strongest when the sun is high in the sky.
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Glacier Lagoon Zodiac Boat Tour: Jökulsárlón, Iceland
During our trip to Iceland, we didn’t make any advance plans for activities. We had a general idea of what we wanted to visit each day and specific times that places were open, but the only set time was when we had to be at our hotels for dinner at the end of the day. Having an open schedule meant we could spend as much, or as little time at each location as we wanted. The one downside was that we had the chance of missing out on something we wanted to do if it was booked up.
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Rainbow at Niagara Falls. Sunday Morning Photograph.
A rainbow at Niagara Falls only enhances this legendary natural wonder that is located on the Niagara River between the province of Ontario in Canada and the state of New York in the United States. Rainbow at Niagara Falls. Sunday Morning Photograph. Photograph ©2026 by Brian Cohen. If you want to see the rainbow for yourself, be sure to visit the falls during the late afternoon as the sun sets without clouds blocking it. The light can change dramatically within a mere few minutes, as evidenced by these photographs. Photograph ©2026 by