Title Text:[One hill over, a competing astrophotographer does a backflip over a commercial airliner while throwing a tray of plastic space stations into the air, through which a falcon swoops to ‘grab’ the real one.] Origin:https://xkcd.com/2463/ https://www.explainxkcd.com/wiki/index.php/2463:_Astrophotography 天文摄影 [山顶上，一名参与竞争的天文摄影师正对着一架商用客机做后空翻，并同时将一盘空间站的塑料模型扔向空中，这时一只猎鹰俯冲… Read…