Astronomy current events question: Buoyant Rover for Under-Ice Exploration (BRUIE)

Astronomy 210L, fall semester 2015
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!)

Becky Ferreira, "This Is the Rover That We Want to Send to Alien Oceans" (September 25, 2015)
http://motherboard.vice.com/read/this-is-the-rover-nasa-wants-into-send-to-alien-oceans

The Jet Propulsion Laboratory field-tested the Buoyant Rover for Under-Ice Exploration (BRUIE), which is a prototype for exploring moons with oceans by:
(A) dragging along ocean floors.
(B) melting through layers of ice.
(C) floating with underwater currents.
(D) driving on underside of ice sheets.
(E) squirt-jet propulsion.

Correct answer: (D)

Student responses
Sections 70178, 70186
(A) : 2 students
(B) : 3 students
(C) : 1 student
(D) : 25 students
(E) : 1 student