A YouTube video posted by the account Uncanny Expeditions appears to show a previously unseen object undergoing testing at Lockheed Martin’s Helendale Radar Cross Section (RCS) Test Range in California’s Mojave Desert.

The footage , filmed from a distance, captures what looks like a dark, diamond- or manta-shaped structure being moved and positioned across the facility.

The object, seen mounted on a pylon or support attached to a flatbed truck, appears in several sequences showing different angles and lighting conditions. In one frame, a distinct blue area can be spotted on its upper surface. While the overall shape resembles a flying wing or blended-body configuration typical of stealth aircraft, its proportions and details do not correspond to any known airframe.

This is not the fir

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