Nina’s little universeA BIG BOOK OF LITTLE WONDERS
Pick a little adventurePlay at your own pace
FROM THE OUTSIDE TO THE CENTER
Peek inside a planet
Open the planet like a book. Its colored layers fit inside each other — tap one to learn its name.
Crust
The thin, rocky layer we live on.
Earth’s layers are shown as paper pieces. Their thicknesses are not to scale. The colors and layer thicknesses help us see inside; they are not to scale.
Explore the science with NASA ↗