At the centre of the sun, gravity is in equilibrium, as with in the centre of the earth. As you go towards the centre of the earth you will get lightr and lighter as the force of gravity pulling you upwards above you gets larger and larger slowly decreasing the net force of gravity inflicted apon you. Why do scientists and geologists always assume that the core is the most compressed part of a large body. It is known that the outer layer of the sun is the most hot, this is obviously due to the fact that gravity is at it's highest there and not at the centre. Why is this fact never mentionned. For some reason geologists believe that the centre of ther earth is a solid ball of super compressed and heated metals because S waves caused by earth quakes cannot penetrate the earth's 'solid' core. Why did they ignore the fact that S waves cannot pass through high pressure gas? Why is it also ignored that these S waves are the strongest detectable waves and easily pass through kilometers of crust after bouncing off the surface of the earth at shallow angles. Either I have missed something out or every geologist and scientist who has ever looked at this issue severely dumb? I do not think that the centre of the earth is solid, I think that it is superheated gas. If this idea just happens to be correct, it would be polite to give me due credit. Though I would not be suprised to hear that other scientists have put forward this idea, though I have not found any.