Astronomy current events question: classification of stellar debris disks

Astronomy 210L, spring 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!)

Francis Reddy, "Volunteer 'Disk Detectives' Top 1 Million Classifications of Possible Planetary Habitats," (January 6, 2015)
http://www.nasa.gov/content/goddard/volunteer-disk-detectives-top-1-million-classifications-of-possible-planetary-habitats/

__________ sorted over 1 million potential debris disks surrounding young stars from NASA's Wide-field Infrared Survey Explorer data.
(A) Photoshop filters.
(B) Internet volunteers.
(C) Randomized computer routines.
(D) Computer screensavers.
(E) An artificial intelligence.

Correct answer: (B)

Student responses
Sections 30678, 30679, 30680
(A) : 4 students
(B) : 39 students
(C) : 3 students
(D) : 1 student
(E) : 14 students