Astronomy current events question: "super fast" galaxy rotation curves

Astronomy 210L, fall semester 2019
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!)
Patrick Ogle, "SALT Observes Super Fast Spirals!" (October 17, 2019)
Southern African Large Telescope measurements of "super spiral" galaxy rotation rates provide evidence of gravity produced by:
(A) neutrino streams.
(B) antimatter clouds.
(C) dark matter halos.
(D) active galactic nuclei.
(E) non-Newtonian dynamics.

Correct answer: (C)

Student responses
Sections 70178, 70186
(A) : 1 student
(B) : 1 student
(C) : 26 students
(D) : 3 students
(E) : 2 students

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