The ultimate aim of all science to penetrate the unknown. Do you realize we know less about the earth we live on than about the stars and the galaxies of outer space? The greatest mystery is right here, right under our feet.
所有科学的最终目的是洞察未知。你意识到我们对地球的了解比我们对恒星和外太空星系的了解还要少吗?最大的谜团就在这里,就在我们脚下。