U.F.B.
Unidentified Flying Blimp
reference tech: -https://hackaday.com/2021/01/07/active-camouflage-material-shows-promise-at-hiding-from-infrared-or-visual-detection/
-https://en.wikipedia.org/wiki/Aereon_Dynairship
-https://web.archive.org/web/20110321152314/http://www.aereon.com/pages/DYNAIRSHIPII.html
-https://ntrs.nasa.gov/citations/19760007927
-https://duckduckgo.com/?q=helium+stealth+airship+dynair&iax=images&ia=images