Wonderopolis

Could Our Solar System Have a Ninth Planet?

Today’s Wonder of the Day takes us way out beyond Neptune!

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Could Our Solar System Have a Ninth Planet?
What Is a Supernova?

Today’s Wonder of the Day isn’t just super...it’s a supernova! Join us for a journey through outer space to see what happens when stars run out of fuel.

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What Is a Supernova?
Have You Ever Wished Upon a Shooting Star?

Today’s Wonder of the Day just might be a wish come true!

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Have You Ever Wished Upon a Shooting Star?
What Causes a Shooting Star?

Today’s Wonder of the Day features some real rock stars that are out of this world!

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What Causes a Shooting Star?
What is the eXtreme Deep Field?

Today’s Wonder of the Day will take you back to the beginning of the universe!

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What is the eXtreme Deep Field?
What Are Stars Made of?

Today’s Wonder of the Day takes a closer look inside the brightest lights in our galaxy!

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What Are Stars Made of?
What Is the Medal Of Honor?

We would be HONORed if you would join us for today’s Wonder of the Day!

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What Is the Medal Of Honor?
Why Can’t We Feel Earth Spin?

We hope you’ll take today’s Wonder of the Day for a spin!

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Why Can’t We Feel Earth Spin?
How Dark Are Your Skies?

Today’s Wonder of the Day shows you how sometimes it’s easier to see when it’s dark!

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How Dark Are Your Skies?
How Many Stars Are In the Universe?

You can count some things on your fingers and toes, but there aren’t enough fingers and toes on Earth to count what we’re counting in Wonderopolis today!

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How Many Stars Are In the Universe?
Where Is the Oort Cloud?

We believe you’ll think today’s Wonder of the Day is out of this world!

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Where Is the Oort Cloud?
Why Do Stars Twinkle?

Today’s Wonder of the Day is up above the world so high, like a diamond in the sky!

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Why Do Stars Twinkle?
What Is an Exoplanet?

Today’s Wonder of the Day will take you to the farthest reaches of the universe!

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What Is an Exoplanet?
What Is Dark Matter?

Today’s Wonder of the Day will shine light on some interesting subject matter!

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What Is Dark Matter?
Where Is the Milky Way?

Today’s out-of-this-world Wonder of the Day may make you hungry for a candy bar!

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Where Is the Milky Way?
Can You Only See the Moon at Night?

Today’s Wonder of the Day usually only comes out at night.

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Can You Only See the Moon at Night?
Can a Star Point the Way?

If you’re lost, you might just wish on today’s Wonder of the Day to guide you home!

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Can a Star Point the Way?
Can You Make a Wish Come True?

We really wish you would join us in Wonderopolis today!

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Can You Make a Wish Come True?
How Was the Telescope Invented?

When you look through today’s Wonder of the Day, you won’t believe your eyes!

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How Was the Telescope Invented?
How Big Is the Solar System?

You won’t believe how big today’s Wonder of the Day is!

#1592

How Big Is the Solar System?

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