By — William Brangham William Brangham By — Solveig Rennan Solveig Rennan By — Madison Staten Madison Staten By — Satvi Sunkara Satvi Sunkara By — Alexa Gold Alexa Gold By — Zoie Lambert Zoie Lambert Leave your feedback Share Copy URL https://www.pbs.org/newshour/video/horizons/2026/05/exploring-the-questions-surrounding-uaps-and-the-search-for-extraterrestrial-life Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Story Unexplained sightings have appeared in our skies for years, and now the U.S. government has started releasing declassified files about what we used to call UFOs. What explains these phenomena, and what do we know about life beyond Earth? Horizons moderator William Brangham explores what we do know, and what we don't, with Leslie Kean and Garrett Graff, two authors who've studied this topic deeply. By — William Brangham William Brangham William Brangham is an award-winning correspondent, producer, and substitute anchor for the PBS News Hour. He also serves as the host of Horizons from PBS News. @WmBrangham By — Solveig Rennan Solveig Rennan Solveig Rennan is a producer of national affairs for PBS News Hour and Horizons. By — Madison Staten Madison Staten By — Satvi Sunkara Satvi Sunkara Satvi Sunkara is a producer for PBS News. By — Alexa Gold Alexa Gold Alexa Gold is an associate producer for PBS News. By — Zoie Lambert Zoie Lambert Zoie Lambert is an associate producer for PBS News.