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A triangular formation of lights was filmed flying at night at "incredible speed". Experts reckon the sighting near the River Liffey in Dublin could be a secret aircraft - or spacecraft. Nick Pope, who probed mystery sightings for the MoD for three years, said: "The video seems to have been taken through a night scope and presumably shows things not visible to the naked eye. "It appears to show a structured craft moving at incredible speed. The configuration of the lights is unlike any aircraft I've ever seen. "It's either some secret prototype aircraft or drone, or something considerably more exotic." ...