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Question
Why was Herschel's strategy for mapping our Galaxy flawed?A) His infrared telescopes couldn't penetrate the dust clouds.
B) He used globular clusters, lying above the dust in the disc.
C) He relied on visual wavelengths, which are obscured by dust.
D) He used radio telescopes that didn't give enough resolution.
E) He assumed Earth was at the extreme edge of the Galaxy.
Answer
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