The “Spear-Wielding Knight”: Japanese Observatory Clocks a UFO at an Impossible 31,000 km/h

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In the world of UFOlogy, speed is a defining characteristic of the phenomenon. But how fast can they truly go? In 2015, a robotic observatory in Japan captured a craft of such bizarre shape and incredible velocity that it allowed researchers, for what may be the first time ever, to scientifically calculate a UFO’s mind-boggling speed. The results are nothing short of astonishing.

A Bizarre Anomaly Over the Future Olympic Site

The sighting occurred on August 8, 2015, at 4:04 PM. The footage was captured by SID-1 (Space Intrusion Detection System-1), an automated platform from the Space Phenomena Observatory Center (SPOC). High above the skyscrapers of Tokyo’s waterfront—the very area that would later host the Tokyo Olympics—a truly alien-looking craft was recorded for a fleeting moment.

The object is unlike anything ever reported. Its shape is best described as a “knight wielding a spear.” A central body with a long, thin appendage extending from its front. Searches of all known databases, from aviation records to zoological data, yielded no matches. This was not a bird, an insect, a drone, or any known aircraft.

Calculating the Impossible: The UFO’s Staggering Speed

What makes this case a landmark in UFO research is that the object was captured in two consecutive frames, just 0.033 seconds apart. This, combined with the known distances to the background skyscrapers, allowed researchers to calculate its angular velocity and, from there, estimate its actual speed.

The results are staggering. Assuming the object was flying at a conservative distance of 1 kilometer, its calculated speed was 31,482 km/h (19,562 mph).

・This is nearly three times faster than Japan’s Hayabusa space probe.
・At this distance, the object would have been 45 meters (148 feet) long.

If the object was further away, at a distance of 5 kilometers, the numbers become even more unbelievable:

・Its speed would be 157,412 km/h (97,811 mph)—four times faster than the Apollo spacecraft.
・Its size would be an immense 200 meters (656 feet).

For comparison, a commercial airliner landing at Tokyo’s Haneda Airport moves at around 300 km/h. In 0.033 seconds, it barely moves a single pixel in the same camera frame. This UFO, however, crossed a vast expanse of the sky in that same instant.

A Craft That Defies Physics

The object’s calculated speed places it deep in the hypersonic realm, far beyond the capabilities of any publicly known aircraft. What is even more baffling is that a craft traveling at such speeds within the atmosphere should create a catastrophic sonic boom and immense heat, yet no such effects were reported.

Furthermore, its flight path was directly against the wind, ruling out any possibility of it being a wind-borne object. Its bizarre, non-aerodynamic shape—the “spear-wielding knight”—is completely unsuited for high-speed atmospheric flight.

The researchers at SPOC were left with a profound mystery. Was this an object using a technology so advanced that it could negate air resistance and inertia? Or was it, as some speculate, not “flying” through our space at all, but rather “teleporting” from one point to another?

The 2015 “Spear-Wielding Knight” sighting remains one of the most scientifically significant and deeply perplexing cases ever recorded. It is not just a picture of a strange object; it is a data-driven glimpse into a technology so far beyond our own, it challenges our very understanding of what is possible.

文＝Hiroshi Kitajima

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