The alchemy that powers the modern world
December 13, 2024 by Sarah Scoles The astronomer Carl Sagan once said, “If you wish to make an apple pie from scratch, you must first invent the universe.” That universe must then invent the first atoms, which will make up the first stars, which will fuse those initial elements into larger ones. Stars will explode and die and crash into each other, those cataclysms building heavier elements. Eventually, billions of years later, the universe will produce an Earth whose insides…