Labels:text | screenshot | font | number OCR: FACT FILE ................. . . .. . .. . . . . . . . . . . . . DUST GRAINS in a reflection nebula do not in fact reflect light but scatter it. Red light can pass through a dust cloud more easily than blue light can, so blue light becomes more scattered; this gives rise to the blue coloration of the cloud. The same effect gives rise to the color of the sky as seen from the Earth: sunlight is scattered strongly by dust grains in the atmosphere. In directions other than toward the Sun, an observer of the sky sees mainly blue scattered light.
