Add Yahoo as a preferred source to see more of our stories on Google. The slice you see cut out of the Earth reveals its core, depicted here in bright yellow. fhm/E+ via Getty Images Our Earth is ...

(WKBN) – If you have thought that the Earth is close to the sun in the summertime and that is why it is hotter this time of year, you will have to think again. While that may sound like common sense, ...