How an Asteroid Came to Earth11/6/2013 2:13PM
The asteroid that exploded over Russia in February was an unprecedented modern-day event. WSJ’s Gautam Naik explains the latest research on its possible flight path, origin and structure. Photo: Science/AAAS
This transcript has been automatically generated and may not be 100% accurate.
I ... I ... every fifteen and about nine twenty in the morning ... an asteroid exploded over Russia's ... releasing ... equivalent force ... thirty times the energy released ... in Hiroshima after all ... scientists have recovered many pieces of fiasco ... there also used for good from hundreds and it's good to get them this ... could get a better understanding of the aspirant to my ... it originated in the far reaches of the solar system ... eventually the rock some twenty meters in diameter fell into the Earth's gravitational touches the the ... the the the the and began to speak to the Earth's atmosphere toothbrushes Fuel Mountains ... knowledge pieces began to break off ... at the height of forty km ... shockwave shunted lingers ... in more than a thousand people in the hospital with injuries ... the roof of the same ... thing collapsed ... the fireball was and is called just and right just when it was about thirty km above the ... at this point it was traveling at more than forty thousand miles per hour ... but by the time it reached a height of fifteen km much as it has evaporated ... scientists believe the rope broke up when you should be quick because it does we can but cracks in the material ... guidance lead to fished out six hundred and fifty kilos Chow ... from the link ... scientists estimate that only four thousand to six thousand FiOS less than points to five percent actually go to the plow ... the event was pretty rare ... scientists say this so far I'm all about ... a thousand such bodies that are between ten and fifteen meters ... in diameter that are in near Earth orbit ... but the danger is that they're above two million more ... out there that haven't been all that we don't know about ...