Who was the first person to observe the spiral structure of distant galaxies with a telescope?
A) Sir Isaac Newton
B) Sir William Herschel
C) William Parsons, Earl of Rosse
D) Galileo Galilei
Correct Answer:
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Q2: Variable stars such as Cepheid variables are
Q3: The famous nineteenth-century observational astronomer Lord Rosse
Q4: In the 1920s Edwin Hubble began answering
Q5: The Milky Way Galaxy
A) is one of
Q6: The idea that some of the nebulae
Q7: The event that settled the Shapley-Curtis debate
Q8: Who won the Shapley-Curtis debate when it
Q9: The first suggestion that there were collections
Q10: The period-luminosity relationship for Cepheid variable stars,
Q11: The famous Shapley-Curtis debate in 1920 concerned
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