Do you ever find yourself staring at the sky, completely caught off guard by how beautiful it looks? Some sunsets have a way ...

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

And because blue wavelengths are the shortest, they get scattered more, resulting in a blue sky. During a sunset, however, light scattering works differently. The sun’s light has a lot further ...

Blue and violet light On a sunny day, shorter wavelengths (like blue and violet) scatter most effectively due to Rayleigh scattering, which is precisely why the sky is blue. At sunset, however ...

Robock said the sky colors and patterns in Munch's paintings match sunset colors better when nacreous ... "We don't know if Munch painted exactly what he saw," Robock said. "He could have been ...