Title Text:It will get within 9 or 10 Sun-diameters of the “bottom” (the Sun’s surface) which seems pretty far when you put it that way, but from up here on Earth it’s practically all the way down. Origin:https://xkcd.com/2262/ https://www.explainxkcd.com/wiki/index.php/2262:_Parker_Solar_Probe 帕克太阳探测器…