Interest in extraterrestrials is rising as scientists weigh unidentified aerial phenomena and distant interstellar visitors, with Seth Shostak cautioning that 'unidentified' does not equal alien, Leslie Kean urging transparency and careful… #aliens #apr2026 #ca #cbsnews #ovni #uap #ufo #ufosky #usa https://www.cbsnews.com/amp/news/ufo-studies-and-the-possibility-of-alien-origin