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| |-+  Science and Technology (Moderators: Tyehimba, leslie)
| | |-+  Sunspot Grows to 20 Times Size of Earth
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Author Topic: Sunspot Grows to 20 Times Size of Earth  (Read 5893 times)
iyah360
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Posts: 592

Higher Reasoning


« on: July 24, 2004, 08:29:16 AM »

http://www.space.com/scienceastronomy/hugesunspots_040723.html

Sunspot Grows to 20 Times Size of Earth
By Robert Roy Britt
Senior Science Writer
posted: 05:10 pm ET
23 July 2004


A sunspot group aimed squarely at Earth has grown to 20 times the size of our planet and has the potential to unleash a major solar storm.

The amorphous mix of spots, together called Number 652, has been rotating across the Sun and growing for several days. On Friday, it sat at the center of the solar disk.

Sunspots are areas of intense magnetic energy, cooler and darker than the surrounding surface of the thermonuclear furnace. Sometimes the magnetic fields let loose and huge amounts of radiation and charged particles are hurled into space.

The Sun's last bout of intense storminess occurred last fall, when a string of 10 major flares over two weeks knocked out satellites, damaged others, and forced the FAA to reroute airlines away from exposed polar routes.

No one can say if this sunspot group will let loose with a major storm, but it has the characteristics of a potentially big event.

"The implications of this spot have scientists on the edge of their seats," NASA said in a statement Friday. "If the active region generates coronal mass ejections (CMEs), massive explosions with a potential force of a billion megaton bombs, it will be a fairly direct hit to Earth and its satellites and power grids." . . .

article continued at:
http://www.space.com/scienceastronomy/hugesunspots_040723.html
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