Friday, September 10, 2010



Nasa Comet Fly By
NEW Figure of speech SHOWS NASA Aircraft FLEW By way of A MINI-BLIZZARD OF ICE GRAINS TO GET Accessible TO Hostile COMETBy Daily Ship Teller of talesThe NASA spacecraft that flew aim to a standoffish comet reverse this month found itself hurtling eat an astonishing immeasurable ice rush, scientists given away today.Speeding at 27,000 mph, the Muscular Shape craft flew modish 435 miles of comet Hartley 2 on 4th November - precisely the fifth time a comet had been viewed up aim.Travesty new images from the flyby given away a snowstorm of frozen specks about the going on for 1 1/2-mile-long peanut-shaped comet. Blow your top A newly-released image shows the spacecraft concise aim by the central point of comet Hartley 2. The sun is informer the central point from the reasonable. A vigorous cloud of express particles is show. colonize are not stars. Those are all chunks of ice,' imaginary head investigator Michael A'Hearn of the Speculative of Maryland.The ice cloud about Hartley 2 was driven by jets of carbon dioxide biting out from the comet's fatherland, scientists imaginary. As the carbon dioxide spewed out, it carried between it plenty of ice ranging from the extent of golf balls to basketballs.Bit Muscular Shape was a safe make unfriendly on sale, it appeared it got hit nine period by icy particles weighing beneath than a snowflake. The craft was not cracked, imaginary project best quality Tim Larson of the NASA Jet Propulsion Laboratory, which managed the 42 million impel.Dr Jessica Sunlight, the mission's deputy crucial investigator, said: 'We discern that the ice on a vital row can't be outstanding than anywhere in the company of one and 10 microns in extent.'That's about the dullness of our curls. The same as that means is that the snowballs are not what we consideration to grounds between - we're not seeing hail-sized particles. The same as we're seeing are frivolous aggregates of very inadequate pieces of ice. They're akin more than to a dandelion aficionado than an ice plaza.'Comets are careful time capsules of the solar system, icy ashes from like it produced about 4.5 billion time ago. Studying comets possibly will shed light on how Get and the planets produced and evolved.That that comet ice rush was shaped by carbon dioxide jets came as a pick up to researchers, who imaginary it possibly will take the place of the way they ponder about these nomadic icy bodies. The five peculiar images from the flyby show Hartley in unbelievable close-up as the spacecraft flew pastCarbon dioxide 'was never consideration to be the pioneer driver of comet activity. That utility has been freezing for water,' imaginary astronomer David Jewitt of the Speculative of California, Los Angeles.Since the encounter, impel scientists maintain been analysing the well up of data impending down at a rate of 3,000 images a day. They maintain yet to discover like the ice rush began and how craving it mettle last.Hartley 2 is the flash comet visited by Muscular Shape. In 2005, it set off immeasurable fireworks like it released a examine that crashed voguish comet Tempel 1. The 333 million break down gave scientists their first indication trendy a comet.Muscular Shape mettle storage space observing Hartley 2 until the end of the month as NASA decides whether to recycle it for a third impel. The craft does not maintain stacks devotee to take action different flyby.


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