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What major physical process is taking place inside stars tha…

What major physical process is taking place inside stars that are on the main sequence in the Hertzsprung–Russell diagram?

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Which of these fall within the typical range of dimensions o…

Which of these fall within the typical range of dimensions of a giant molecular cloud in interstellar space?

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The final stage in the evolution of a red dwarf star is

The final stage in the evolution of a red dwarf star is

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In the Hertzsprung–Russell diagram in Figure 12-7 in the tex…

In the Hertzsprung–Russell diagram in Figure 12-7 in the text, which of these lists is the correct sequence of stars in order of DECREASING absolute magnitude?

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What are the two MOST abundant elements in the interstellar…

What are the two MOST abundant elements in the interstellar medium?

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The Hertzsprung–Russell diagram is a plot of

The Hertzsprung–Russell diagram is a plot of

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What is a star’s luminosity?

What is a star’s luminosity?

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In connection with a star, what does the phrase “metal-poor”…

In connection with a star, what does the phrase “metal-poor” mean?

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Neutron stars are believed to be created by

Neutron stars are believed to be created by

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The detection of neutrinos from SN 1987A occurred 3 hours be…

The detection of neutrinos from SN 1987A occurred 3 hours before the detection of the burst of visible light. What caused this time lag?

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