What is the origin of 'sleep tight'? One of the mysteries of the English language finally explained.
The moon doesn't glow in a very real sense. It reflects the Sun's light. (Or the Earth's light if you're not on Earth and in the right position.) As Quora User says, the moon has a high albedo. So it reflects pretty well.
The Sun is a source of light. The Moon is just rock. The Moon has a reflective surface which reflects light from the Sun which we see as a lit up Moon. It doesn't shine as bri â¦ ght because it can only reflect so much of the Sun's light to our eyes.