A third and fourth flare have erupted from sunspot 1283. The third came on September 7 at 6:36 PM ET, and was categorized as an X1.8 by the GOES spacecraft, making it the second X-class flare within 24 hours.
Space Exploration
Sep 8, 2011
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(AP) -- Forecasters say a new solar flare should provide only a glancing blow on Earth on Friday and is unlikely to cause any problems.
Space Exploration
Sep 7, 2011
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(PhysOrg.com) -- NASA's Solar Dynamics Observatory, or SDO, has provided scientists new information about solar flares indicating an increase in strength and longevity that is more than previously thought.
Space Exploration
Sep 7, 2011
41
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(PhysOrg.com) -- Imagine forecasting a hurricane in Miami weeks before the storm was even a swirl of clouds off the coast of Africa—or predicting a tornado in Kansas from the flutter of a butterfly's wing in Texas. These ...
Space Exploration
Aug 25, 2011
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Viewed from the technological perspective of modern humans, the sun is a seething cauldron of disruptive influences that can wreak havoc on communication systems, air travel, power grids and satellites – not to mention ...
Space Exploration
Aug 18, 2011
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(PhysOrg.com) -- A missing jet stream, fading spots, and slower activity near the poles say that our Sun is heading for a rest period even as it is acting up for the first time in years, according to scientists at the National ...
Space Exploration
Jun 14, 2011
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The Sun unleashed an M-2 (medium-sized) solar flare, an S1-class (minor) radiation storm and a spectacular coronal mass ejection (CME) on June 7, 2011 from sunspot complex 1226-1227. The large cloud of particles mushroomed ...
Space Exploration
Jun 7, 2011
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(PhysOrg.com) -- The largest solar flare recorded in nearly five years was triggered by interactions between five rotating sunspots. Researchers at the University of Central Lancashire studied observations of the flaring ...
Space Exploration
Apr 21, 2011
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(PhysOrg.com) -- Researchers at the University of Central Lancashire have monitored the birth of a sunspot over a period of eight hours using observations from NASA's Solar Dynamics Observatory (SDO). Dr. Stephane Regnier ...
Space Exploration
Apr 20, 2011
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Sunspots have been observed for about four centuries, since they were first reported by Galileo. Appearing in roughly eleven-year cycles of activity, sunspots are regions of strong and complex magnetic fields which are also ...
Space Exploration
Apr 5, 2011
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