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Orbits Are Odd

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Did you know that there is a massive black hole at the center of our galaxy? Today, Sabrina talks about this and more.

Rocks From Space!

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With so many objects floating around in space, we’ve got you covered on knowing the difference between all of the smaller celestial bodies that orbit the Sun.

Glow On

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Sabrina chats about how stars glow and how astronomers judge their brightness. Also, she talks about a really, really, really big star.

What Is A Blue Moon?

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You may be familiar with the Moon turning red during lunar eclipses, but did you know that it can sometimes appear to have a blue hue?

Seeing Stars

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Today, let's play a game of "Star or Not a Star" to learn a little more about everything that's up there.

Big Moon?

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Despite appearances, the Moon remains the same size, and your brain is simply playing tricks on you.

Over (To) The Moon

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Sabrina chats with us about what it takes to get to the moon!

Seasons And The Sun

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Sabrina talks about how the Earth's tilt is responsible for Winter, Spring, Summer, and Fall.

Eclipses

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Today, we’ll explain the difference between solar and lunar eclipses.

Phases Of The Moon

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Today we'll find out how the moon's changing shapes tell us about its journey around Earth.

The Sun

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What makes this star so special that it keeps our entire solar system working?

Earth's Rotation & Revolution

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In this episode of Crash Course Kids, Sabrina talks about the Earth's rotation and revolution.

Why Is The Milky Way Flat?

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Explore the ever-evolving structure of the Milky Way galaxy, and find out how it got its spiral shape.

Why Does NASA Observe The Sun In Different Colours?

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The Solar Dynamics Observatory, or SDO, sees the Sun in more than 10 distinct wavelengths of light, showing solar material at different temperatures.

How To Find A Galaxy

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Knowing the addresses of a thousand galaxies yielded a remarkable picture of our universe.

The Largest Known Star

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What is the largest star in the Universe? And why is it that large? And what ARE stars anyway?

What's The Difference Between Asteroids, Comets, And Meteors?

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Asteroids, comets, and meteors: what's the difference?

How Saturn Got Its Rings

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There's evidence to suggest Saturn didn't have its rings when the dinosaurs inhabited Earth, so how did they form?

The Last Star

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The last star in the universe will be a red dwarf.