In December 2009, residents of Moscow filmed a giant, pyramid-shaped UFO hovering silently above the Kremlin for several hours. Multiple videos appeared online, showing the massive triangular craft slowly rotating in the night sky. While skeptics dismissed the footage as a hoax, some UFO researchers argued the size and stability of the object made it one of the most extraordinary sightings of the decade. The incident sparked worldwide media coverage and continues to be debated as either an elaborate fake or a rare glimpse of advanced technology.