Astronomy current events question: DXL rocket data

Astronomy 210L, fall semester 2016
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!)

Sarah Frazier
, "NASA-Funded Sounding Rocket Solves One Cosmic Mystery, Reveals Another" (September 23, 2016)
nasa.gov/feature/goddard/2016/nasa-funded-sounding-rocket-solves-one-cosmic-mystery-reveals-another

NASA's DXL rocket went above Earth's atmosphere to measure __________ emitted from the sun's solar wind and the solar system's surrounding Local Hot Bubble gases.
(A) x-rays
(B) dark matter.
(C) neutrinos.
(D) gravitational waves.
(E) radioactivity.

Correct answer: (A)

Student responses
Sections 70178, 70186
(A) : 23 students
(B) : 0 students
(C) : 1 student
(D) : 15 students
(E) : 4 students