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#1
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Russian Meteor Strike
Apparently a small chunk of the planetoid flying by Earth has struck a Russian town. Over 400 people injured, no deaths reported yet.
http://edition.cnn.com/2013/02/15/wo...html?hpt=hp_t1 |
#2
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Russian Meteor Strike
On Friday, February 15, 2013 2:34:59 AM UTC-8, wrote:
Apparently a small chunk of the planetoid flying by Earth has struck a Russian town. Over 400 people injured, no deaths reported yet. http://edition.cnn.com/2013/02/15/wo...html?hpt=hp_t1 More information: the object exploded close to the ground and most of the injuries apparently were caused by broken glass and other debris created by the shock wave from the air burst. |
#3
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Russian Meteor Strike
On Feb 15, 6:06*am, " wrote:
On Friday, February 15, 2013 2:34:59 AM UTC-8, wrote: Apparently a small chunk of the planetoid flying by Earth has struck a Russian town. Over 400 people injured, no deaths reported yet.http://edition.cnn.com/2013/02/15/wo...eteor-shower/i... More information: the object exploded close to the ground and most of the injuries apparently were caused by broken glass and other debris created by the shock wave from the air burst. Scientists estimate about 500,000 objects at least the size of asteroid 2012 DA14 are in the solar system, and astronomers have discovered less than 1 percent of them. Makes me wonder how many larger sized objects have fragmented, like the one that hit saturn? years ago? There may be clouds of mini asteroids that could impact earth occasionally |
#5
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Russian Meteor Strike
From :
On Friday, February 15, 2013 2:34:59 AM UTC-8, wrote: Apparently a small chunk of the planetoid flying by Earth has struck a Russian town. Over 400 people injured, no deaths reported yet. http://edition.cnn.com/2013/02/15/wo...html?hpt=hp_t1 More information: the object exploded close to the ground and most of the injuries apparently were caused by broken glass and other debris created by the shock wave from the air burst. It is not just a burst that will cause the shock wave. The simple hypersonic travel will create that wave. It is totally conceivable that a meteor could dip into the atmosphere and pass cleanly out the other side and *still* send hundreds to the hospital for broken glass-type injuries due to its shockwave. ~ CT |
#6
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Russian Meteor Strike
From Brian Lawrence:
On 15/02/2013 10:34, wrote: Apparently a small chunk of the planetoid flying by Earth Nothing whatever to do with 2012 DA14 - totally different orbits. After SL9 broke up, all two dozen+ fragments ended up in different orbits. So while there are many who would agree with what you have stated, I myself am not so quick to put a 100% certainty on such a conclusion. ~ CT |
#7
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Russian Meteor Strike
I wrote:
From Brian Lawrence: On 15/02/2013 10:34, wrote: Apparently a small chunk of the planetoid flying by Earth Nothing whatever to do with 2012 DA14 - totally different orbits. I just now read that the this morning's meteor strike came in from a totally different direction from 2012 DA14, so now I see what you were saying. After SL9 broke up, all two dozen+ fragments ended up in different orbits. So while there are many who would agree with what you have stated, I myself am not so quick to put a 100% certainty on such a conclusion. ~ CT So apparently the SL9 situation does not apply here. ~ CT |
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Russian Meteor Strike
On 15/02/2013 17:05, Stuf4 wrote:
I wrote: From Brian Lawrence: On 15/02/2013 10:34, wrote: Apparently a small chunk of the planetoid flying by Earth Nothing whatever to do with 2012 DA14 - totally different orbits. I just now read that the this morning's meteor strike came in from a totally different direction from 2012 DA14, so now I see what you were saying. It's also about the time difference between the meteor/ite and the closest approach. Roughly 14 hours apart. Again roughly, the Earth orbits at around 30kps, so over 14 hours travels about 1.5 million km ~ 1m miles. That's a huge difference between objects from a single 'parent' - perhaps not 100% impossible, but extremely unlikely. Possibly if the objects separated a long time ago and their orbits have continued to diverge over time. After SL9 broke up, all two dozen+ fragments ended up in different orbits. So while there are many who would agree with what you have stated, I myself am not so quick to put a 100% certainty on such a conclusion. ~ CT So apparently the SL9 situation does not apply here. ~ CT -- Brian W Lawrence Wantage Oxfordshire |
#9
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Russian Meteor Strike
On 2/15/2013 5:34 AM, wrote:
Apparently a small chunk of the planetoid flying by Earth has struck a Russian town. Over 400 people injured, no deaths reported yet. http://edition.cnn.com/2013/02/15/wo...html?hpt=hp_t1 Sounds of the meteor are available via Flash player on this site: http://www.b.weather.com/news/meteor...earth-20130215 Audio would indicate one severe explosion followed by several smaller 'popping' sounds. First explosion powerful enough not only to break windows but set off car alarms. Subsequent explosions from remnant fragments? It would be nice to have a spectral analysis of the flash. Dave |
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Russian Meteor Strike
On Friday, February 15, 2013 4:42:43 AM UTC-8, bob haller wrote:
Scientists estimate about 500,000 objects at least the size of asteroid 2012 DA14 are in the solar system, and astronomers have discovered less than 1 percent of them. Makes me wonder how many larger sized objects have fragmented, like the one that hit saturn? years ago? There may be clouds of mini asteroids that could impact earth occasionally "Occasionally", hell- they do EVERY DAY. Bob, meteor 'swarms' such as the Perseids or Leonids are beleived to be exactly that- pieces of comets which have disintegrated. The most likely theory of the Tunguska object is that it was a piece of Comet Encke. As others have suggested, you're probably thinking of Comet Shoemaker-Levy 9, which impacted Jupiter in 1994. |
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