Our solar system is home to eight amazing planets. Some are small and rocky; others are big and gassy. Some are so hot that metals would melt on the surface. Others are freezing cold.
We're learning new things about our neighboring planets all the time. We send spacecraft to take pictures, gather information, and find out more about them.
Do you want to know more about our solar system's eight planets? Click a planet on the sidebar or choose from below to get started.
Planet Merit Badges
On each planet page, you can click planet badges to learn more about that planet.
Here is what each badge means:
The smallest planet
The biggest planet
A planet with moons
A planet with no moons
The hottest planet
The coldest planet
A planet with a thick atmosphere
A planet with a thin atmosphere
A terrestrial planet
A gas giant or ice giant
The length of 1 day
The length of 1 year
A planet with rings
A planet with volcanoes
The year the planet was discovered
A planet we've known since ancient times
A planet that rotates on its side
A planet with a reverse spin
A planet that has living things
How we've explored the planet.