For millennia, meteorites were seen as messages from the gods, their fiery remains inspiring worship and giving rise to legends. But beyond the lore, geologist Tim Gregory points out, meteorites tell an even greater story: that of our solar system. While discussing the truly astonishing elements contained within meteorites, Gregory explains how they document fiery collisions far off in our cosmos. Indeed, this interstellar debris can be used to uncover new insights into what our solar system was like before our sun became a star, how our planet was forged, and how life emerged on Earth.