a bit more explanation for the question... "Wouldn't the earth explode if we dug down to the core?"<br />
the core is solid even though it is so hot because there is so much pressure down there that there is not enough space for the atoms to expand from a solid to a liquid. so when we release the pressure by drilling down there wouldn't it have a similar reaction to when you stab a balloon with a needle?<br />
PS sorry if my handwriting is hard to read. let me know if it is.