“The sky too has its changes. . . . Clouds map it up at times, but it is normally a dome of blending tints, and the main tint blue. By day the blue will pale down into white where it touches the white of the land, after sunset it has a new circumference—orange, melting upwards into tenderest purple. But the core of blue persists, and so it is by night. Then the stars hang like lamps from the immense vault.”

—E.M. Forster, A Passage to India, 1924.