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Question
Why do the patterns of the stars in our sky look the same from year to year?
Options:
A .  Although these stars move quite fast by human standards, they are so far away that it would take thousands of years for their motion to be noticeable to the eye.
B .  These stars are not moving
C .  Although these stars move quite fast as they orbit around the Milky Way Galaxy, they all move together so they don't change their relative positions
D .  Although these stars are moving, they move so slowly—typically about the speed of a snail—that their motion is not noticeable
Answer: Option A
:
A
Option A

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