AaS! 218: How Do We Know What the Milky Way Looks Like?
Why is it so hard to get a picture of the Milky Way? How much of our galaxy have we mapped? What the heck is a \u201cbarred spiral\u201d and what does that have to do with our core? I discuss these questions and more in today\u2019s Ask a Spaceman!
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Thanks to Cathy Rinella for editing.
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