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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.
Read more: www.foxnews.com...
Originally posted by JDmOKI
reply to post by Zcustosmorum
I'm really starting to think that this was the asteroid and was destroyed midair. All they had to do was change the time of arrival by twelve of so hours
Originally posted by H1ght3chHippie
I think they base this calculation upon the fragments which were found and analyzed.
It turns out they contained more than 10% iron, and I guess that adds a lot to the potential density of the object. Meaning a vastly increased mass at roughly the same volume.
But of course I always take such calculations with a few grains of salt. After all no-one put that thing on a scale, thus there will never be a absolute certainty.
"A century later some still debate the cause and come up with different scenarios that could have caused the explosion," said Yeomans. "But the generally agreed upon theory is that on the morning of June 30, 1908, a large space rock, about 120 feet across, entered the atmosphere of Siberia and then detonated in the sky." It is estimated the asteroid entered Earth's atmosphere traveling at a speed of about 33,500 miles per hour. During its quick plunge, the 220-million-pound space rock heated the air surrounding it to 44,500 degrees Fahrenheit. At 7:17 a.m. (local Siberia time), at a height of about 28,000 feet, the combination of pressure and heat caused the asteroid to fragment and annihilate itself, producing a fireball and releasing energy equivalent to about 185 Hiroshima bombs.