Multiple Choice
About 50 years after Uranus was discovered:
A) its rings were discovered.
B) the retrograde motion of its orbit was observed.
C) its orbit was too far off of its predicted path to be explained by observational errors.
D) it was discovered that it had more natural satellites than any other planet.
E) it was discovered that its atmosphere was featureless.
Correct Answer:

Verified
Correct Answer:
Verified
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