Astronomy current events question: end of Herschel space telescope mission

Astronomy 210L, spring semester 2013
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!)
United Press International, "Space Telescope Nears End of Mission," March 5, 2013
The European Space Agency's Herschel infrared space telescope will end its observing mission due to:
(A) no more liquid helium coolant.
(B) software that cannot be upgraded.
(C) misaligned solar panels.
(D) cracks in its primary mirror.
(E) a reactor radiation leak.

Correct answer: (A)

Student responses
Sections 30678, 30679, 30680
(A) : 37 students
(B) : 1 student
(C) : 1 student
(D) : 8 students
(E) : 2 students

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