Note: this data is represented only in an article a the Ipsos website. It does not link to polling data. One in ten Americans report that they have seen an unidentified flying object (UFO), unchanged over time. Four times as many Americans (42%) believe in UFOs. When it comes to other unexplainable phenomena, about three in ten (28%) report that, at some point, they have woken up from sleep with a sense of a strange presence in the room, and one in four (25%) have seen or believed themselves to have been in the presence of a ghost. Beyond that experience, two in five (39%) believe in ghosts.