Pentagon officials say there have been more than 20 UFO sightings in a 12-month period that need further analysis. While the majority of reports were explained away by everyday objects, some have left officials stumped. But don't get too excited - this doesn't mean an alien invasion is close by.

The Pentagon has received hundreds of reports of new UFO sightings, including “several particularly interesting cases,” according to the director of the office that investigates these reports, but reiterated it found no evidence of alien activity.

Americans were convinced enough that they spotted a UFO that they reported sightings to the Pentagon more than 700 times over a 12-month period, according to a new report. The annualized report from the Department of Defense showed that between May 1,