John Royer is the first person to doubt he's seen life from another planet, even though he's seen three unidentified flying objects in his lifetime.

An engineer, Royer said he employs scientific reasoning to investigate his sightings. Sure, they weren't typical aircrafts, but that doesn't mean they were alien aircrafts, either.

Royer's doubts about his UFOs haven't stopped him from helping others get a better understanding of the unidentified flying objects they've seen. The Emmaus resident earlier this year ended a 3-year stint as a field investigator for the Mutual UFO Network, the nation's largest UFO investigation group.

While being a MUFON field investigator is an unpaid position, it requires passing an exam on a 265-page manual and a background check, network Executive Director David MacDonald said. Field investigators are then tasked with looking into UFO reports in their area and determining if they are credible, he said.

Let's hear it for MUFON! To read more, click here.