Astronomy current events question: OGLE-2007-BLG-349

Astronomy 210L, fall semester 2016
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!)

Felicia Chou, Donna Weaver, and Ray Villard, "Hubble Finds Planet Orbiting Pair of Stars 8,000 Light-Years Away" (September 22, 2016)
exoplanets.nasa.gov/news/1389/hubble-finds-planet-orbiting-pair-of-stars-8000-light-years-away/

The Hubble Space Telescope confirmed that OGLE-2007-BLG-349 is comprised of a planet orbiting two stars, by observing how light was bent and amplified by:
(A) solar flares.
(B) gravity.
(C) radio waves.
(D) dark matter.
(E) magnetic fields.

Correct answer: (B)

Student responses
Sections 70178, 70186
(A) : 3 students
(B) : 15 students
(C) : 1 student
(D) : 1 student
(E) : 11 students