Solar System

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Astronauts Anne McClain and David Saint-Jacques

Space Videos

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Space Videos
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Why is it colder in the winter even though the Earth is closer to the Sun?

Learn why we have seasons in this hands on activity.
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Why is it colder in the winter even though the Earth is closer to the Sun?
What would happen if a meteor hit Earth?

What would happen if a meteor hit Earth?

Explore the effects of asteroid impacts in this hands on activity.
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What would happen if a meteor hit Earth?
The planet Mars

What is your weight on another planet?

Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.
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What is your weight on another planet?
Asteroids

Where Can We Find Asteroids and Comets?

This backgrounder explains the difference between planets, dwarf planets and small solar system bodies, such as asteroids and comets.
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Where Can We Find Asteroids and Comets?