Title Text:It’s a myth that the Great Wall of China is the only human-made structure visible from space–there are LOTS of structures for us to feel self-conscious about! Origin:https://xkcd.com/2524/ https://www.explainxkcd.com/wiki/index.php/2524:_Comet_Visitor 彗星来访 所谓“长城是唯一能在太空看到的人造建筑”只是个传说——地球上有太多令我们人类太在意别人看法的东西了。 http://xkcd.in/comic?lg=cn&id=2524 彗星 C/2014 UN 27… Read more