读书摘要✂：
「waitbutwhy： Ridiculously cool close-ups of the surface of the sun just released by @NSF. Each of those cells is the size of Texas. (h/t @kottke) http://bit.ly/2u7CvhF 」
「waitbutwhy： Ridiculously cool close-ups of the surface of the sun just released by @NSF. Each of those cells is the size of Texas. (h/t @kottke) http://bit.ly/2u7CvhF 」