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
artiteacher Mapping our cosmic neighborhood
Inside the Local Bubble, the Local Bubble / Stars are born right on the edge!
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.
Quiz
Approximately how many years does it take the solar system to orbit the Milky Way center once?
Quiz
Approximately how far is Earth's solar system from the center of the Milky Way?
Quiz
What percentage of the Milky Way's mass is estimated to consist of invisible dark matter?
