The Milky Way Galaxy
A) is one of many billions of galaxies in the universe.
B) is unique in the universe in showing definite spiral structure.
C) contains the whole universe; everything observable is within its volume.
D) is one of only a few spiral galaxies; most other galaxies in the universe are amorphous collections of stars shaped like ellipsoids.
Correct Answer:
Verified
Q1: Who was the first person to observe
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
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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