Visible light travels in electromagnetic waves, which we see as the colors of the rainbow. Different colors have different wavelengths of light. Violet and blue have the shortest wavelengths, whereas ...

This story was originally published by Wired and is reproduced here as part of the Climate Desk collaboration. The sky above San Francisco was the color of television, tuned to the president. The ...

The sky above San Francisco was the color of television, tuned to the president. The reason for the orange—and for the wan yellows and sickly grays that followed—is a combination of atmospheric ...