RT @AstroKatie: To be fair, astronomy is *usually* at least a little better than this. (xkcd.com/1725/) https://t.co/bdEFim3lHM
RT @AstroKatie: To be fair, astronomy is *usually* at least a little better than this. (xkcd.com/1725/) https://t.co/bdEFim3lHM