Astronomy current events question: "blue straggler" stars

Astronomy 210L, fall semester 2012
Cuesta College, San Luis Obispo, CA

Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)
Richard Hook, "Stars Ancient and Modern?," October 31, 2012
Images of globular cluster NGC 6362 from the European Southern Observatory and the Hubble Space Telescope show "blue straggler" stars, which __________ than expected for stars in this globular cluster.
(A) contain less dark matter.
(B) travel slower.
(C) appear younger.
(D) blue-shift more.
(E) are cooler.

Correct answer: (C)

Student responses
Sections 70178, 70186, 70200
(A) : 0 students
(B) : 0 students
(C) : 20 students
(D) : 4 students
(E) : 1 student

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