This ancient pristine galaxy validates the Big Bang
Monday, July 21, 2025 - 12:34
in Physics & Chemistry
Our understanding of the universe begins with the Big Bang, a moment in time where the universe began expanding into what we see around us now. Big Bang nucleosynthesis describes how only the lightest elements were created originally: hydrogen, helium, and a tiny bit of lithium. For elements heavier than those, which astrophysicists call metals, a generation of stars had to live and die.