β All time stops
The Big Bang
13.8 billion years ago β everything begins
Pop on your imaginary space helmet and travel back to the very first birthday of our universe!
1/5
- 13.8 billion years ago
The Super Tiny Start
Before stars existed, the whole universe was squished into a tiny hot speck. Then it popped open and started growing fast!
The big idea
Everything in the whole universe started from one tiny, powerful pop!
Fun facts
- β¨ The universe is still stretching bigger and bigger right now!
- β¨ The very first gas made was hydrogen, the same stuff inside floaty party balloons.
- β¨ A tiny bit of the static sound on an old TV comes from energy left over from the Big Bang!
Science words
- Universe β Everything that exists anywhere, including space, stars, planets, and you!
- Expand β To stretch out and get bigger.
- Galaxy β A huge swirling family of stars, dust, and planets in space.