Essay
Predictions for Extra- solar Planets: What predictions does the solar nebula theory make regarding possible planetary systems surrounding other stars? Discuss at least two such predictions that have been strongly confirmed by observations. Explain how the detection of "hot Jupiter" extrasolar planets seemed to be a striking inconsistency with the solar nebula theory. Do you think astronomers were justified in modifying the solar nebula theory in the face of such evidence as opposed to discarding the theory altogether?
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