Astronomy current events question: mapping Large and Small Magellanic Cloud cosmic rays

Astronomy 210L, fall semester 2018
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!)

Lister Staveley-Smith, Bi-Qing For, and Pete Wheeler, "Telescope Maps Cosmic Rays in Large and Small Magellanic Clouds" (September 4, 2018)
icrar.org/cosmic-rays/

The Murchison Widefield Array in Australia mapped radio signals of cosmic rays created by __________ in the Large and Small Magellanic Clouds.
(A) supernova remnants.
(B) black holes.
(C) matter and antimatter.
(D) gravity waves.
(E) pulsars.

Correct answer: (A)

Student responses
Sections 70178, 70186
(A) : 11 students
(B) : 1 student
(C) : 3 students
(D) : 2 students
(E) : 6 students