The blue and green light is scattered so well that you can hardly see it. The sky is colored, instead, with red and orange light. Colors mean a lot to us in so many different ways.

The annual celebration of our Independence Day will dazzle the skies but will come with more sizzling heat with air quality ...

We asked them to follow a light therapy routine in which they administered blue light to themselves, at home, by sitting in front of light boxes. Each morning and evening, they spent two hours ...

Lower humidity and drier air mean less scattering of blue light, allowing more blue to reach our eyes and making the sky appear more intensely blue. The changing color of the leaves also plays a role.

Blue light has a shorter wavelength, due to which it’s scattered more easily by the tiny molecules in the air. This scattering, known as Rayleigh scattering, is why we see a blue sky during the day.