Question: What makes the moon and sun glow?

Hussain Jaffery answered on 16 Nov 2015:

The sun is actually a giant nuclear fusion reactor – it converts hydrogen to helium in a massive scale, this producing all of its light, heat and other kinds of energy. The glow on the moon is just the sunlight bouncing off of it and back to us on Earth! If you were on the moon, the Earth would look like a large blue and white marble glowing back at you.