Astronomy current events question: Ultima Thule revealed

Astronomy 210L, spring semester 2019
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!)

News release, "NASA's New Horizons Mission Reveals Entirely New Kind of World" (January 2, 2019)
pluto.jhuapl.edu/News-Center/News-Article.php?page=20190102

NASA's New Horizons spacecraft sent back images of Ultima Thule, a __________ located past Pluto.
(A) red dwarf.
(B) dormant comet.
(C) small gas giant.
(D) slowly-forming planet.
(E) set of two connected spheres.

Correct answer: (E)

Student responses
Sections 30679, 30680
(A) : 7 students
(B) : 3 students
(C) : 5 students
(D) : 9 students
(E) : 10 students