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"A celestial body flew from the easterly direction, from a low population area at about 08:00 a.m. Moscow time on December 1. This meteorite was making practically no noise while falling and the most loud sound it produced was the sound of it hitting the ice," Chernobrov, who heads the Kosmopoisk (Space Research) association, told journalists, adding that this was the reason that so few people had witnessed its fall when it was still dark. "Divers managed to sense the object under sand on the lake's bottom."Magnetic field distortion has been registered over the meteorite crater. Divers failed to lift the heavy object from the bottom because of thin ice. "All observable factors - the flight direction, whop, specific crater testifying to the velocity of the fall - all indicate that it was a meteorite," he said. "It is a unique case having no precedents in the history."
"Imaging Ultraviolet Spectrograph instrument detected major changes as dust from the comet slammed into atoms and molecules in the upper atmosphere, high-energy collisions that caused the thin air to glow."With this, the Recife event, and the 'Pacific lights' event the month before that, it looks like our atmosphere has reached a certain threshold of comet dust saturation.
Comment: The astronomer is clueless about meteors. It's pretty clear to us that a larger object broke up. What's doubly interesting is that meteor(s) passed that way "half an hour earlier". We have noticed something similar happening before, where one meteor appeared to follow pretty much the exact same path not long afterwards.
It's mind-bending when one considers that the planet has surely moved on (both in space and on its own axis) by that point. So how does the 'follow-up meteor' know to track the same course as its predecessor? There is clearly much more to discover about meteor science. In the meantime, we face the disquieting fact that there have been a LOT more of meteors appearing the world over - even during daytime - in recent years.