Russian meteorite 1,000 times bigger than originally thought ...The meteorite actually weighed closer to 10,000 tons ...

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'This event was so much bigger than anything we've seen on video that it doesn't surprise me the guess was off by three orders of magnitude.'
- Margaret Campbell-Brown, physics professor at the University of Western Ontario
Later in the evening, after studying infrasound data from stations around the world, NASA released a new estimate revising that first guess upward by a thousand-fold: The meteorite actually weighed closer to 10,000 tons, scientists said -- approximately as much as 170 M1 Abrams tanks.
“My guess is that someone eyeballed the videos and made an educated guess,” said Margaret Campbell-Brown, associate professor in the department of physics and astronomy at the University of Western Ontario. “This event was so much bigger than anything we've seen on video that it doesn't surprise me the guess was off by three orders of magnitude.”


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