What is this 2.5mile long object moving under the Pacific Ocean?
The object, which observers say looks man-made rather than natural, is estimated to measure more than 2.5miles in diameter and is surrounded by what look like massive tank tracks.
Other observers suggest the tracks may be trenches or fortifications.
But the most baffling thing is the circular object which appears to have left a 41 mile track in its wake as it trundled across the floor of the North Pacific off the Californian coast .
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