The Milky Way galaxy

Chapter 1

Mapping our cosmic neighborhood

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Chapter 2

The monster at the center

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Chapter 3

The Milky Way in human culture

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Chapter 4

The fate of our galactic home

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YOUR GOAL

Master of The Milky Way galaxy

Ch 1 · Mapping our cosmic neighborhood

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teacher Inside the Local Bubble, the Local Bubble / Stars are born right on the edge!

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teacher The invisible halo of dark matter

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Fun Fact

Galactic speed: Our solar system has only completed about 20 orbits around the Milky Way since the Sun formed 4.6 billion years ago.

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teacher The grand scale of the galactic disk

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Quiz

How wide is the main stellar disk of the Milky Way galaxy?

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Gossip

Which galactic neighborhood name sounds coolest?

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Quiz

Approximately how many years does it take the solar system to orbit the Milky Way center once?

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Quiz

In which specific spiral arm of the Milky Way is our solar system located?

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Quiz

How fast is our solar system traveling as it orbits the galactic center?

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Quiz

Approximately how far is Earth's solar system from the center of the Milky Way?

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Quiz

How thick is the stellar disk of the Milky Way galaxy on average?

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Quiz

What percentage of the Milky Way's mass is estimated to consist of invisible dark matter?

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Quiz

What type of galaxy is the Milky Way classified as by astronomers?

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