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Spacequakes may have taken out the birds.......

 
zephyr
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User ID: 961524
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01/07/2011 11:18 AM
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Spacequakes may have taken out the birds.......
A spacequake is a temblor in Earth's magnetic field. It is felt most strongly in Earth orbit, but is not exclusive to space. The effects can reach all the way down to the surface of Earth itself.

"Magnetic reverberations have been detected at ground stations all around the globe, much like seismic detectors measure a large earthquake," says THEMIS principal investigator Vassilis Angelopoulos of UCLA.


[link to science.nasa.gov]

Last Edited by zephyr on 01/07/2011 11:22 AM
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zephyr  (OP)

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01/07/2011 11:20 AM
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Re: Spacequakes may have taken out the birds.......
In 2007, THEMIS discovered the precursors of spacequakes. The action begins in Earth's magnetic tail, which is stretched out like a windsock by the million mph solar wind. Sometimes the tail can become so stretched and tension-filled, it snaps back like an over-torqued rubber band. Solar wind plasma trapped in the tail hurtles toward Earth. On more than one occasion, the five THEMIS spacecraft were in the line of fire when these "plasma jets" swept by. Clearly, the jets were going to hit Earth. But what would happen then? The fleet moved closer to the planet to find out.


"Now we know," says THEMIS project scientist David Sibeck of the Goddard Space Flight Center. "Plasma jets trigger spacequakes."

Last Edited by zephyr on 01/07/2011 11:21 AM
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Anonymous Coward
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01/07/2011 12:07 PM
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Re: Spacequakes may have taken out the birds.......
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