Hi Blubird, Our sun is a living star and has no hiden side. The heat and light come from itself on all sides and as our planets revolve around themselves and the sun they all get a chance to bask in its hot, light glory a side at a time.

The hidden side the inside is where all the nuclear reactions are occurring I know is doesn't seem so when you see pictures of the sun you see a black center and red and orange lines around it but that is because the center in blotted out on purpose or it would be impossible to take a picture of the sun and see the individual explosions and flares.

UPDATE I just searched pictures of the Sun, things have changed a lot since my old days of science class! There are amazing pictures of the sun showing everything nothing blotted out even close up shots I have no idea how they got closeup shots but these are amazing!

i do not think so blubird. the in and the out are the same. and it produce light and with out light life cannot exist plant would not grow, animal and human would be missing alot of vitamine; and would all die from cold. but you can learn more about the sun:http://en.wikipedia.org/wiki/Sun

the sun is like the heart of the solar system. where all the energy radiate from the core to all direction of its system. http://en.wikipedia.org/wiki/File:Heliospheric-current-sheet.gif

the sun also have a life cycle and change along the way:http://en.wikipedia.org/wiki/File:Solar_Life_Cycle.svg

and when it becomes a white dwarf it start to cool down. it can become a supernova or a black dwarf or from its density it can create a black hole in space.http://en.wikipedia.org/wiki/White_dwarf

when it is dark it is pretty cold.

hope it helps you with your question

Examine the different climates in different regions of this planet and how close the sun is to it during certain seasons. The sun is closest to the Earth during January and February. In the U.S.A. these are cold temperature months, in every state. Why is it that during January and February, in the Northern U.S., when there is a cloudless, gorgeous blue sky and the sun shining brightly above, the temperature can be in the 20s Fahrenheit? And explain to me this: why are certain states in the U.S. much warmer than others, despite the closeness of the sun, and the closeness of the states? These states aren't that far away from each other; not as far as the sun. Add to the equation that space is a vacuum, yes, but is extremely cold. The higher the elevation and the further away from Earth, the colder it gets.

There is the theory that the sun generates heat when its rays interact with matter. I understand but do not agree wholly with this theory. For instance, why are higher land elevations always cooler in temperature than lower elevations? I understand wind, shade, and cloud coverage are variable factors, but that does not explain why certain regions of the Earth that are lower in elevation are consistently warmer in temperature than others.

Not all heat generates light, and not all light generates heat.

Compare a human being's mass to the mass of the sun. Compare the energy produced by each. If a human being had the same mass as the sun, the energy produced would be far, far greater than the sun. Therefore, each human being does, in fact, produce more energy than the sun. This energy -- our inner light -- is highly, highly compressed within our mass. Each human being has enough energy compressed within its mass to generate an entire galaxy AND more.

The sun is a converter and a gateway. It is full of holes and is itself an enormous inter-galactic hole. It may appear to us a swirling ball of intense heat waves, but the sun radiates light, NOT heat. As for sides, the sun has no sides.

I suggest researching cold fusion and the production of radiation.

There is still so much we have to re-discover.