Why is the sky blue?
A clear cloudless day-time sky is blue
because molecules in the air scatter blue
light from the sun more than they scatter
red light. When we look towards the sun
at sunset, we see red and orange colours
because the blue light has been scattered
out and away from the line of sight.
because molecules in the air scatter blue
light from the sun more than they scatter
red light. When we look towards the sun
at sunset, we see red and orange colours
because the blue light has been scattered
out and away from the line of sight.