By 200 million years after the Big Bang, the Universe had become a very dark and cold place. Then things started to change. First, galaxies and nebulae formed. These were the earliest structures in the Universe. Then stars – “hot spots” of light and energy – emerged from these clouds of dust and gas.
Ever spill jelly beans on the floor? In the new Universe, some atoms – like the jelly beans – wound up together in pockets. Unlike the jelly bean scenario, gravity did its thing. Long story short…stars.
All those new elements. What exactly were they and how did they bind to or repel each other? The science of chemistry was born as early scientists studied the properties and structure of chemical elements and compounds.