I remember reading that the sun is approx 3000 miles away. Watched a guy using something like CAD to demonstrate the distance. The easy way to tell it's closer is just to look at it at sundown. It doesn't happen everyday but clouds will get behind it. Also, if you have access to a plane or fly a lot like I do, you can see hot spots on the clouds. It's definitely not 93 million miles away. But for an exact number, I don't know that human beings can know that. Most of the stuff you see on tv and the internet, like "images" from space telescopes etc are just artists renditions and in truth, there are no pictures. Just look how goofy the drawings are when you compare "images" of the earth over the last 40 years. A five year old could tell you those pictures don't match. We just love the lie too much.