Astronomy current events question: earliest detection of primordial hydrogen

Astronomy 210L, spring 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!)
Jennifer Chu, "Astronomers Detect Earliest Evidence Yet of Hydrogen in the Universe" (February 28, 2018)
Primordial hydrogen absorbing light from the universe's first stars was recently detected using:
(A) adaptive optics.
(B) infrared interferometers.
(C) underground neutrino detectors.
(D) radio telescopes.
(E) particle accelerators.

Correct answer: (D)

Student responses
Sections 30679, 30680
(A) : 3 students
(B) : 11 students
(C) : 0 students
(D) : 22 students
(E) : 1 student

No comments: