"Bellvue - James Carrion will often look up at the stars shining over his hilltop home near this Larimer County community and wonder who or what is watching.
'I think they know I'm looking for them,' said the 41-year-old former Army intelligence officer.
Carrion is international director of the Mutual UFO Network, one of the largest groups in the world dedicated to examining sightings of unidentified flying objects and otherworldly phenomena.
The nonprofit's world headquarters recently moved from a storefront in Littleton into Carrion's spacious home. He directs 400 field investigators - all certified by MUFON - to interview witnesses, examine possible landing sites and review weather and astronomical data to determine whether a sighting was a balloon, atmospheric blip or something unexplainable.
Most can be explained, Carrion said. But about 10 percent to 15 percent of the 2,400 cases the group takes on each year turn out to be something that escapes human logic, he said.
'And the people who make these reports are reliable and down-to-earth who saw something that can't be explained,' he said. "
DenverPost.com - Global team searches for UFOs: