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Home Q & A Board Science-Related Homework Help Physics Astronomy
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killian killian
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10 years ago
On a cosmic calendar, in which the history of the universe is compressed into 1 year, when did Kepler and Galileo first discover that we live on a planet in a solar system?
A) 1 second ago
B) 1 day ago
C) 1 week ago
D) December 25
E) December 30
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padrepadre
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10 years ago
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killian Author
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#2
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10 years ago
Thanks for helping me with my astronomy class
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