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NASA | AR1520's Parting Shot - July 19 M7.7 Flare

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Published on Jul 19, 2012

Sun Sends Out Moderate Solar Flare

The sun emitted a moderate solar flare on July 19, 2012, beginning at 1:13 AM EDT and peaking at 1:58 AM. Solar flares are gigantic bursts of radiation that cannot pass through Earth's atmosphere to harm humans on the ground, however, when strong enough, they can disrupt the atmosphere and degrade GPS and communications signals.

The flare is classified as an M7.7 flare. This means it is weaker than the largest flares, which are classified as X-class. M-class flares can cause brief radio communications blackouts at the poles.

Increased numbers of flares are currently quite common, since the sun's standard 11-year activity cycle is ramping up toward solar maximum, which is expected in 2013. It is quite normal for there to be many flares a day during the sun's peak activity.

Updates will be provided as they are available on the flare and whether there was an associated Earth-directed coronal mass ejection (CME), another solar phenomenon that can send solar particles into space and affect electronic systems in satellites and on Earth.

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Top Comments

  • xFLAMeHD

    Sexy. :D

    · 20

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  • Joey Bower

    That's amazing to see.

    · 13

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All Comments (61)

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  • tefik45

    İts at least 30 times the size of planet earth

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  • Fahad Alahmad

    GOD save us

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  • Kashiv Ranik

    The Sol's hot :D

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  • 213SEMPERFI

    I believe is many times not one.

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    in reply to Johnny A.K. (Show the comment)
  • ludacris111b

    Major damages to the electric infrastructure would cause chaos for humans. No electricity means no gas pumps, therefore no means for food supply. Pretty much everything depends on electricity these days

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    in reply to bravicimo (Show the comment)
  • AQDIMTV

    سبحان الله.

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  • Simon Prévost-Langlois

    He's SO hot!

    

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  • habtish werka

    i wone swim on that

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  • Walter White

    Its a Spirit Bomb!!!!!!!!!!!

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  • badax22

    Hey NASA. Thanks for being awesome.

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