Cheryl and Linda Costa
Cheryl and Linda Costa are UFO researchers and co-authors of the UFO Sightings Desk Reference: United States of America 2001-2020. This extensive guide book lists over 167,000 UFO sightings in all 50 states, including summary data and maps of where to find these sites. Cheryl is a military veteran and retired information security professional from the aerospace industry. She writes the “New York Skies” column for SyracuseNewTimes.com and was formerly the host of The X Factor radio show in Washington, D.C., on UFOs and the paranormal. She witnessed her first UFO at age 12.