Ever gazed up on a bright day and wondered why the sky isn’t green, purple, or pink, but a vivid blue? The answer lies in how sunlight interacts with Earth’s atmosphere, creating a daily spectacle of ...

First, let's explain why we see the color blue in the sky as opposed to other colors. The sun actually emits a 'white' light ...

Like the colors on the leaves, the sky also changes color with the seasons. In the winter, the sky has more of a blue hue. But in the summer, it looks milky white, even when free of clouds. Why is ...

Ever wonder why the sky is blue on a clear day, but red when there are pollutants such as smoke in the air? Wildfire smoke fills the air with tiny particles. The particles, such as soot, ash, and ...

Unlike Earth’s orange-red sunsets, Mars shows a blue sunset. This happens due to fine dust particles in the Martian atmosphere, which scatter blue light forward more efficiently than red—reversing ...