Astronomy current events question: LCROSS mission outcome

Astronomy 210L, Fall Semester 2009
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!)

Alan MacRobert, "The LCROSS Impact, Continued," October 11, 2009
http://www.skyandtelescope.com/news/home/63766222.html

What was the somewhat unexpected result of the NASA LCROSS mission lunar impact?
(A) No collision was observed.
(B) The impact was smaller than expected.
(C) Evidence of liquid water waves.
(D) A new faint, tilted ring surrounding the Moon.
(E) Brief disruption in satellite TV communications.

Correct answer: (B)

Student responses
Sections 70178, 70186, 70200
(A) : 4 students
(B) : 20 students
(C) : 5 students
(D) : 0 students
(E) : 0 students