what color is the atmosphere
At sunset, the sunâs rays travel their longest path to our eyes through the earthâs atmosphere. Like a prism, the atmosphere separates the sunâs light into its component colors, so that we see overlaid images of the sunâs disc in different colors, the lowest being red and the upper rim, blue to violet. As the sun sets, sunlight travels through the atmosphere close to the ground, where it is thickest.