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The Sun Unleashes Coronal Mass Ejection At Earth

astroengine writes "Yesterday morning, at 08:55 UT, NASA's Solar Dynamics Observatory detected a C3-class flare erupt inside a sunspot cluster. 100,000 kilometers away, deep within the solar atmosphere (the corona), an extended magnetic field filled with cool plasma forming a dark ribbon across the face of the sun (a feature known as a 'filament') erupted at the exact same time. It seems very likely that both eruptions were connected after a powerful shock wave produced by the flare destabilized the filament, causing the eruption. A second solar observatory, the Solar and Heliospheric Observatory, then spotted a huge coronal mass ejection blast into space, straight in the direction of Earth. Solar physicists have calculated that this magnetic bubble filled with energetic particles should hit Earth on August 3, so look out for some intense aurorae — a solar storm is coming."

22 of 220 comments (clear)

  1. Astroporn by iceborer · · Score: 5, Funny

    It's cosmic bukkake!

    1. Re:Astroporn by Anonymous Coward · · Score: 5, Funny

      You're a jackass.

      I just had to explain to my coworkers, including my female boss, why I laughed hard enough to snort iced tea all down my shirt. Trying to explain an astronomy joke to normals is one thing, but tying it into in a weird, totally NSFW Japanese fetish? She'll be glaring at me suspiciously all month.

      Might as well get started on my resume....

    2. Re:Astroporn by Anonymous Coward · · Score: 4, Insightful

      There is this wonderful thing, called lying like a cheap rug, that would have helped you out there.

    3. Re:Astroporn by Dexx · · Score: 4, Funny

      So... lawyers are the larval form of politicians? When they're mature enough they twist the truth into a cocoon and then emerge transformed?

      --
      Feel the fear and do it anyway.
  2. So should I unplug all my stuff or not? by assemblerex · · Score: 4, Interesting

    I hope this isn't some hyped up story about something the sun does regularly.

    1. Re:So should I unplug all my stuff or not? by pezpunk · · Score: 5, Funny

      actually, i kind of hope it is!

      --
      i could live a little longer in this prison
    2. Re:So should I unplug all my stuff or not? by bgt421 · · Score: 5, Informative

      Not to be pedantic, but telegraph operators did drop dead during the Carrington Flare, if only because they were more or less attached to massive "antennas." Moreover, the usual threat of solar storms is not radiation to people, but to the radio equipment that makes modern life possible. This one should only graze the

    3. Re:So should I unplug all my stuff or not? by jnaujok · · Score: 4, Insightful

      It left an isotopic signature in the ices of Greenland that can still be measured today.

      --
      Life, the Universe, and Everything... in my image.
    4. Re:So should I unplug all my stuff or not? by rachit · · Score: 5, Funny

      Not to be pedantic, but telegraph operators did drop dead during the Carrington Flare, if only because they were more or less attached to massive "antennas."
      Moreover, the usual threat of solar storms is not radiation to people, but to the radio equipment that makes modern life possible. This one should only graze the

      One should hope that bqt421 wasn't attached to massive "antennas" while posting this message.

    5. Re:So should I unplug all my stuff or not? by Chris+Burke · · Score: 4, Funny

      Heart stopped... death... comes swiftly... Must... hit... Submit!

      --

      The enemies of Democracy are
    6. Re:So should I unplug all my stuff or not? by Eternauta3k · · Score: 4, Funny

      Rather, "must... preview... wait 5 seconds... hit submit!"

      --
      Yeah. Would you choose a neurosurgeon who pokes around people's brains in his spare time? I wouldn't.
    7. Re:So should I unplug all my stuff or not? by Hadlock · · Score: 4, Interesting

      The carrington flare was an X class flare, two classes above this C class (out of three) flare. And it's near the bottom of the C class scale as well, a C-2. This is like interupting your normally scheduled program to report that there was a 2.0 earthquake in Los Angeles county... the rural portion.

      --
      moox. for a new generation.
  3. Free Aurora Alerts by Anonymous Coward · · Score: 5, Informative

    If you want a warning when auroras are likely to be occuring without paying Spaceweather for alerts (so you can scurry outside and look), check out the NOAA's SWPC mailing lists. Go for the K-Index lists, and sign up for all those that apply for your location.

    To figure out which minimum k-index results in visible aurora from your location, check out this helpful page; just enter in your latitude and longitude, and it'll give you your "magnetic latitude"; match that up with a k-index using the table, and you know which mailing lists to sign up for.

    If your phone does email, you can get the alerts anywhere; if your phone doesn't but your provider has an email-to-sms gateway, you could just forward emails for the same effect. :)

  4. Re:Sun Ejection?! by Anonymous Coward · · Score: 4, Funny

    Are you trying to say:

    "Here cums the sun?"

  5. Re:Irony by Chris+Burke · · Score: 5, Funny

    No, Alanis, that would just suck.

    --

    The enemies of Democracy are
  6. Re:clarification requested. by boneclinkz · · Score: 5, Funny

    sooo are you saying i should check out the sweet sunset that evening, or prepare for oblivion, or put on some sunscreen, or what? i beg your pardon, i'm just not sure what the proper reaction is when a huge coronal mass ejection blasts a magnetic bubble filled with energetic particles at me.

    All organic life in the Northern Hemisphere is disintegrated at the subatomic level, Pacific Ocean boils away, Indian Ocean freezes solid, everybody in Uganda gets superpowers.

  7. Re:space station by SnarfQuest · · Score: 5, Funny

    If this were a typical science fiction movie, they would have an astronaut deflect it using a mirror made from a candy wrapper and a tongue depressor. When that, surprisingly, fails, the radiation will strike the Earth, waking Godzilla, who will then proceed to destroy Japan. Since I don't live in Japan, I say let him have his fun.

    --
    Who would win this election: Andrew Weiner vs Andrew Weiner's weiner.
  8. Re:Flights? by jemtallon · · Score: 4, Funny

    If a solar flare leaves the star Sol at 8:55am traveling at 540 miles/second and a plane takes off from Houston 9 days later, will the flight be affected by the solar flare?

    No.

  9. Re:Straight towards Earth? by John+Hasler · · Score: 4, Informative

    It's traveling very fast (one day to get here) in pretty much a straight line. It is so much larger and faster than the Earth that orbital motion can be neglected. Link

    --
    Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
  10. Can't wait by fyngyrz · · Score: 4, Interesting

    It just means I get to take more pictures like these.

    I wrote an application that keeps track of auroral potential WRT photography. It's public domain, and you can get the latest version of the project here. Linux, OSX. Nothing for windows, sorry. At least, not without substantial linux-like underpinnings. Love to hear about it if you did get it running under windows, of course.

    --
    I've fallen off your lawn, and I can't get up.
  11. This is not news...or news-worthy by DJRumpy · · Score: 4, Informative

    Here are the classifications, and a C3 means few if any noticeable impact on Earth. It is the X class flares that we need to be concerned about:

    http://www.spaceweather.com/glossary/flareclasses.html

    Scientists classify solar flares according to their x-ray brightness in the wavelength range 1 to 8 Angstroms. There are 3 categories: X-class flares are big; they are major events that can trigger planet-wide radio blackouts and long-lasting radiation storms. M-class flares are medium-sized; they can cause brief radio blackouts that affect Earth's polar regions. Minor radiation storms sometimes follow an M-class flare. Compared to X- and M-class events, C-class flares are small with few noticeable consequences here on Earth.

    1. Re:This is not news...or news-worthy by DJRumpy · · Score: 4, Interesting

      I actually found this far more interesting. Apparently the sunspot that created the intial flare is large enough it can be spotted with the naked eye. This sunspot is huge.

      http://spaceweather.com/

      Image of the sunspot in question: http://spaceweather.com/swpod2010/02aug10/Oleg-Toumilovitch1_strip.jpg

      SUNSPOT SUNRISE: Sunspot 1092, a key player in yesterday's Earth-directed eruptions, is big enough to see without the aid of a solar telescope. Oleg Toumilovitch "spotted" it on July 31st rising over Blairgowrie, South Africa:

      Photo details: Canon EOS-350D, ISO-800, 1/1600s exposure

      "During the first few minutes of sunrise only a fraction of the sunlight makes it's way to the observer - mostly from the red part of visible spectrum," notes Toumilovitch. "During this time large sunspots can be seen without a special solar filter." Be careful, though! Even when dimmed by clouds and haze, direct sunlight can hurt your eyes. "If you try to take a picture like this," advises Toumilovitch, "look only at the screen of your digital camera, not the optical viewfinder."