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Published on Feb 26, 2013
They've been where no man has gone before. "Unidentified flying objects," commonly called UFOs, have fascinated the public since the dawn of the commercial aerospace industry just after the end of World War II.
With the help of our partners at WatchMojo.com, who compiled a list of the top 10 most documented UFO sightings of all time, here are some of the most intriguing incidents -- some of which remain unexplained.