Planets smallest to largest in order

• Mercury

- Mercury doesn't have moons

• Mars

-It will have a ring someday

• Venus

- Named after the Roman Goddess of Love and Beauty

• Earth 

-It is one of the only habitable planets.

• Neptune

-Named after the Roman God of the sea

• Uranus

-Coldest planet

• Saturn

-The least dense planet in the solar system

• Jupiter

- The biggest planet