StarTalk @StarTalkRadio
Did you know that our orbit of the Sun isn't perfectly symmetrical? At our closest, we are 91 million miles away and at our farthest, 94 million miles. Our closest point, Perihelion, is in January while our furthest point, Aphelion, is in July. https://t.co/e3Ym7Se9aM — PolitiTweet.org
