EntityQ2227505· pop 15· linked from 377 articlesblack triangleSign in to saveclass of UFOs, with certain common features which have reportedly been observed during the 20th and 21st centuriesConnectionsunidentified flying objectEntityalien abductionEntityPentagon UFO videosEntityThe Age of DisclosureWorkPhoenixEntityInternational Standard Book NumberEntityNetflixConceptWayback MachineEntityGulf WarEventMantodeaEntityHudson RiverEntityUnited States Air ForceEntityGeneral Dynamics F-16 Fighting FalconEntityNorthrop B-2 SpiritConceptBoeing B-52 StratofortressConceptDiscovery ChannelEntityArea 51EntityLockheed F-117 NighthawkEntityMcDonnell Douglas F/A-18 HornetEntityBoeing B-29 SuperfortressEntityCategoriesAviation incidents involving UFOs and military aircraftStealth aircraftUFOs by type