Astronomy current events question: "H0LiCOW" universe expansion rate measurements

Astronomy 210L, spring semester 2017
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!)
Sherry Suyu, Vivien Bonvin, Frederic Courbin, and Mathias Jäger, "Cosmic Lenses Support Finding on Faster than Expected Expansion of the Universe" (January 26, 2017)
The "H0LiCOW" collaboration used space and ground-based telescopes to determine that Hubble constant (the rate at which the universe is expanding) appears to be different than measurements:
(A) made by the Voyager space probes.
(B) from the early universe.
(C) predicted by general relativity.
(D) of gravitational waves.
(E) generated by computer simulations.

Correct answer: (B)

Student responses
Sections 30679, 30680
(A) : 6 students
(B) : 8 students
(C) : 9 students
(D) : 1 student
(E) : 6 students

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