Two Solar Flares Welcomes 2014 – Nasa Space News

The sun ushered out 2013 and welcomed 2014 with two mid-level flares on
Dec. 31, 2013 and Jan. 1, 2014. 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. This disrupts the radio signals for
as long as the flare is ongoing, anywhere from minutes to hours.

To see how this event may impact 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.

The first flare (below) was categorized as an M6.4 and it peaked at
4:58 p.m EST on Dec. 31. The second (above) was categorized as an M9.9
and peaked at 1:52 p.m. EST on Jan. 1. Both flares emerged from the same
active region on the sun, AR1936. Imagery of the flares was captured by NASA’s Solar Dynamics
Observatory, which keeps a constant watch on the sun, collecting new
data every 12 seconds.

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