Although Bad Astronomer Phil Plait does and awesome job of smacking down this latest 2012 tomfoolery, I thought I'd add my skeptical 2c-worth.
As Phil clearly points out, the flimsy piece of evidence being used by the "UFO Examiner" (sadly, this is a position that the Examiner considers to be a journalistic position) is actually an image defect on the observation plate. This happens a lot!
What makes this particular example (pictured top) susceptible to image defects is that the original image was captured on a physical photographic plate and then scanned and digitized (i.e., copied onto a computer for easy access) through the 2nd Generation Digitized Sky Survey.
During the scanning process, it is nigh-on impossible to remove all dust and other debris from the plates, so dust and other debris can often be found floating in some digitized images. Also, chips and cracks in the emulsion of the plates will be scanned.
But how do you know if what you're looking at is a chip, scratch or coffee stain and not a ginormous alien space ship flying toward Earth? Apart from the simple application of logical thought, astronomers will often photograph the same part of the night sky with several different filters. If the object is in the blue filter, say (as the above photo was lifted from), and not in the red filter, then it is highly likely that the object isn't real and it's just a fleck of dirt on one of the plates.