Astronomy current events question: dark energy theory revision

Astronomy 210L, Spring Semester 2011
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!)

Clara Moskowitz, "Bizarre Dark Energy Theory Gets Boost From New Measurements," March 15, 2011
http://news.yahoo.com/s/space/20110315/sc_space/bizarredarkenergytheorygetsboostfromnewmeasurements

The Wide Field Camera 3 on the Hubble Space Telescope observed __________, in order to revise theories of dark energy.
(A) type Ia supernova explosions.
(B) rapid protostar formation.
(C) distances to nearby stars.
(D) galaxy collisions.
(E) very old globular clusters.

Correct answer: (A)

Student responses
Sections 30678, 30679, 30680
(A) : 9 students
(B) : 8 students
(C) : 7 students
(D) : 1 student
(E) : 0 students