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The Nine Planets

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Interesting trivia and quiz questions about space, our solar system, and beyond!

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How did the rings of Saturn form?

What are comets made of?

What is tidal locking?

What color is Venus?

What is rocket fuel made of?

Does the Sun rotate?

Can you survive a black hole?

Are we getting closer to the sun?

Why do stars appear to twinkle?

What would happen if the moon exploded?

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The Eight Planets

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune

Five Dwarf Planets

Ceres
Pluto
Haumea
Makemake
Eris

The Solar System

The Sun
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Asteroid Belt

About Nine Planets

The Nine Planets has been online since 1994 and was one of the first multimedia websites that appeared on the World Wide Web.

Take an interactive tour of the solar system, or browse the site to find fascinating information, facts, and data about our planets, the solar system, and beyond.

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