Astronomy current events question: dwarf galaxy dark matter

Astronomy 210L, spring 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!)
Francis Reddy, "Fermi Observations of Dwarf Galaxies Provide New Insights on Dark Matter," April 2, 2012
Analysis of observations of nearby dwarf galaxies by NASA's Fermi gamma-ray space telescope has determined that dark matter:
(A) cannot be the antimatter twin of luminous matter.
(B) comprises more than 50% of the universe's composition.
(C) is created inside supermassive black holes.
(D) is not composed of weakly-interacting massive particles (WIMPs).
(E) may not actually exist.

Correct answer: (D)

Student responses
Sections 30678, 30679, 30680
(A) : 1 student
(B) : 10 students
(C) : 0 students
(D) : 13 students
(E) : 0 students

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