How well do you know the moon? Take our quiz!

Courtesy of NASA/Reuters
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It has been the subject of popular children's books, the setting for blockbuster sci-fi movies, the center of folklore and legends, and the final frontier in the Cold War space race. Earthly beings have always dreamed about the moon, but it's largely remained a mystery for centuries – until now. Are you a moon master or a lunar loser? Test your moon mastery here.

1. How old is the moon?

8.5 billion years


6 billion years


4.5 billion years


2 billion years

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