Did UFOs Fly Over San Francisco & Brooklyn?

ufo san francisco
A string of luminescent orbs hover over San Francisco.
(Image credit: CBS San Francisco)

Updated at 6:45 p.m. ET

The Mayan apocalypse believed by some to be taking place on Dec. 21, 2012, has apparently been preceded by multiple sightings of alleged UFOs hovering over major U.S. cities. In the past week, San Francisco and Brooklyn were both treated to the sight of mysterious illuminated objects floating in the sky.

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Marc Lallanilla
Live Science Contributor
Marc Lallanilla has been a science writer and health editor at About.com and a producer with ABCNews.com. His freelance writing has appeared in the Los Angeles Times and TheWeek.com. Marc has a Master's degree in environmental planning from the University of California, Berkeley, and an undergraduate degree from the University of Texas at Austin.