It is a glow-in-the-dark night sky too, colored a mix of green, yellow, and red. Its colors result from scattered sunlight, oxygen, and sodium from shooting stars.

In August 1883, the eruption of the Krakatoa volcano in Indonesia triggered a series of atmospheric phenomena so dramatic ...

This mellow light blue may certainly seem familiar. Depending on where and at what time of the day you look at the sky, you might well expect to catch a glimpse of a similar color.

Learn more about what a star’s color means and while you’ll never see a twinkling green star in the night sky.

Let's go over the basics of how blue skies work: Light from the sun is made up of many colors, which manifest in different wavelengths. For example, red light has the longest wavelength and, on ...

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.

The violet and blue light that gets scattered can still make it to our eyes, and since human eyes are very receptive to blue light, the sky looks blue. This process is known as Rayleigh scattering.

The sky is bluer in the zenith than elsewhere, because the path traversed by scattered light is here the shortest, so that it appears with less admixture of white light reflected from haze and ...

The sky isn’t just blue – airglow makes it green, yellow and red too The distinct colours of airglow are the result of atoms and molecules releasing particular amounts of energy in the form of ...