Tuesday, February 6, 2007

Sun Storm: A Coronal Mass Ejection


Credit: SOHO Consortium, ESA, NASA
Explanation: What's happening to our Sun? Another Coronal Mass Ejection (CME)! The Sun-orbiting SOHO spacecraft has imaged many erupting filaments lifting off the active solar surface and blasting enormous bubbles of magnetic plasma into space. Direct light from the sun is blocked in the inner part of the above image, taken in 2002, and replaced by a simultaneous image of the Sun in ultraviolet light. The field of view extends over two million kilometers from the solar surface. While hints of these explosive events, called coronal mass ejections or CMEs, were discovered by spacecraft in the early 70s, this dramatic image is part of a detailed record of this CME's development from the presently operating SOHO spacecraft. Near the minimum of the solar activity cycle CMEs occur about once a week, but near solar maximum rates of two or more per day are typical. Strong CMEs may profoundly influence space weather. Those directed toward our planet can have serious effects.

25 comments:

nanc said...

we get warnings from our cable station on days when there will be solar flares - possibilities of outtages...they are beautiful to glance at.

Anonymous said...

Of course you don't want to be in a plane when they hit earth... it's like getting the radiation dose of a chest x-ray...

American Crusader said...

That's an amazing picture. Are most of the effects weather related or is there health risks associated with these CME'S?

Eyes said...

Looks like FJ answered that question:>)

Gayle said...

WOW! Picture snagged, Eyes! :) It will be in my Fractured Friday post this week, with a hat tip to you, of course. Thanks!

Brooke said...

Fantastic pic!

Anonymous said...

Speaking of the sun... pretty soon you're going to need to wear your old 3-D movie glasses to appreciate the pictures. This satellite-pair launched last fall. I can't wait to see the pictures. ;-)

Eyes said...

THAT will be awesome.

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