While constructing the international space station, astronauts capture a strange object on camera, which raises suspicions around the world. See more in this clip from Season 3, "The Search For Extraterrestrial Life." Watch all new episodes of The UnXplained, streaming now, on The HISTORY ...

Subscribe to our YouTube channel for free here: https://sc.mp/subscribe-youtube The US Office of the Director of National Intelligence will release a landmark report based on the work of a US Navy-led task force established by the Pentagon in August 2020 examining unidentified aerial phenomenon ...