Somebody shows you the picture in the figure below and comments that it is the most recent photo of the Milky Way taken with an instrument aboard a spacecraft that has just recently left the boundaries of our home galaxy and is on its way to Andromeda. You would immediately react by saying: "This cannot be the Milky Way because 
A) we live in an elliptical galaxy."
B) our galaxy does not have a bar."
C) the Sun is at the very center of the galaxy."
D) the Milky Way is way too big for a spacecraft to go that far."
E) all galaxies in the universe are identical and therefore we cannot be so sure this is the Milky Way."
Correct Answer:
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A) halfway out
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A) bipolar jets
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