Chapter 1
The first second of existence
Chapter 2
The light that remains
Chapter 3
Building the first atoms
Chapter 4
From darkness to first stars
YOUR GOAL
Master of How everything began
Ch 3 · Building the first atoms
artiteacher Building the first atoms
The hydrogen inside the water that you drink Was made before the stars could even start to blink.
artiteacher After the initial glow faded, the universe entered a period of total darkness.
artiteacher Scientists are still trying to solve why there is less lithium than predicted.
BETA
artiteacher Select and refine cosmic models to discover how scientists proved the Big Bang.
Fun Fact
Primordial hydrogen: Every single hydrogen atom in your body's water molecules was created during the Big Bang, making you 13.8 billion years old.
Glossary
recombination (noun)
The process of combining or joining together again to form new combinations. About 380,000 years after the Big Bang, this process produced the universe's first neutral hydrogen.
The process of combining or joining together again to form new combinations. About 380,000 years after the Big Bang, this process produced the universe's first neutral hydrogen.
Quiz
What is the simplest chemical element, consisting of just one proton and one electron?