Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust.
你身体里的每一个原子都来自一颗爆炸了的恒星。形成你左手的原子可能和形成你右手的来自不同的恒星。这是我所知的关于物理的最有诗意的事情：你们都是星尘。
——Lawrence M. Krauss
