As it expanded, it cooled slightly, allowing the first "ingredients" to form—a super-hot plasma of quarks and electrons.
Imagine everything you see today—the skyscrapers, the swirling Milky Way, and the phone in your hand—all crushed down into a space smaller than a single atom. 13.8 billion years ago, this was the "Singularity," a point of infinite heat and density where the laws of physics as we know them didn't yet exist. The Moment of "Bang" big_bang_explosion
For 380,000 years, the universe was a thick, glowing fog. When it finally cooled enough for atoms to form, light could finally travel freely. This "first light" still echoes across space today as the Cosmic Microwave Background (CMB) . Fun Fact: A Sarcastic Name As it expanded, it cooled slightly, allowing the
The name "Big Bang" was actually coined by an astronomer, Fred Hoyle, who the theory. He used the term sarcastically during a 1949 radio interview to mock the idea of a sudden beginning. Ironically, the name was so catchy that it stuck forever. Why it Matters The Moment of "Bang" For 380,000 years, the
The Big Bang wasn't a firework going off in an empty room; it was the room itself suddenly appearing and growing at an impossible speed.