October 24, 2014
The
sun emitted a significant solar flare, peaking at 5:40 p.m. EDT on Oct.
24, 2014. NASA's Solar Dynamics Observatory, which watches the sun
constantly, captured images of the event. Solar flares are powerful
bursts of radiation. Harmful radiation from a flare cannot pass through
Earth's atmosphere to physically affect humans on the ground, however --
when intense enough -- they can disturb the atmosphere in the layer
where GPS and communications signals travel.
To see how this event may affect Earth, please visit NOAA's Space Weather Prediction Center at http://spaceweather.gov, the U.S. government's official source for space weather forecasts, alerts, watches and warnings.
An X3.2-class flare erupted from the lower half of the sun on Oct. 24, 2014.
This image of the flare was captured by NASA's SDO and it shows extreme ultraviolet light
in the 304 Angstrom wavelength. Image Credit: NASA/SDO
This flare is classified as an X3.1-class flare. X-class denotes the most intense flares, while the number provides
more information about its strength. An X2 is twice as intense as an X1,
an X3 is three times as intense, etc.
The flare erupted from a particularly large active region -- labeled AR 12192 -- on the sun that is the largest in 24 years. This is the fourth substantial flare from this active region since Oct. 19.
What is a solar flare?
For answers to this and other space weather questions, please visit the Spaceweather Frequently Asked Questions page.
Related Links
To see how this event may affect Earth, please visit NOAA's Space Weather Prediction Center at http://spaceweather.gov, the U.S. government's official source for space weather forecasts, alerts, watches and warnings.
An X3.2-class flare erupted from the lower half of the sun on Oct. 24, 2014.
This image of the flare was captured by NASA's SDO and it shows extreme ultraviolet light
in the 304 Angstrom wavelength. Image Credit: NASA/SDO
The flare erupted from a particularly large active region -- labeled AR 12192 -- on the sun that is the largest in 24 years. This is the fourth substantial flare from this active region since Oct. 19.
What is a solar flare?
For answers to this and other space weather questions, please visit the Spaceweather Frequently Asked Questions page.
Related Links
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