TORONTO There are traces of the sun, deep within our Earth s core. Researchers at Heidelberg University in Germany have found evidence of particles from solar winds that were encased within the Earth s core over 4.5 billion years ago. As described in their paper published in Nature Research s Communications Earth & Environment, the researchers examined the Washington County iron meteorite, which is a meteorite discovered in its namesake county in Colorado nearly a century ago. Given that it s impossible to dig into the actual core of the Earth itself, researchers rely on iron meteorites like the Washington County one as analogues to what the deep interior of the Earth would be like. These meteorites are generally fragments from the interior of asteroids that were formed during the first few million years after the formation of our solar system.