According to an organization that tracks UFO reports, this summer has been an especially busy period for UFO sightings. The Mutual UFO Network? (MUFON) noted that sightings increased over the past six weeks, with some states more than doubling their normal numbers.

Are we on the cusp of an alien invasion? Or maybe people just have more time on their hands to spot — and report — strange things in the sky.

MUFON International Director Clifford Clift told Life's Little Mysteries that he's not sure what to make of the data at this point. It could be the start of something big, or it could merely be a computer glitch that accidentally counted some reports twice. Another possibility is that we're simply in the midst of a "UFO flap," one of many periodic increases in sightings over the years.

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