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Solar Cycle Update

Guest essay by David Archibald Two useful things we would like to know are the length of Solar Cycle 24 and the amplitude of Solar Cycle 25. Figure 1 below shows the NOAA version of Solar Cycle 24 progression with the 23/24 transition copied onto the end of their projection. This crude method (we don’t…

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The Sun Is Almost Completely Blank

Weakest Solar Cycle In More Than A Century The sun is almost completely blank. The main driver of all weather and climate, the entity which occupies 99.86% of all of the mass in our solar system, the great ball of fire in the sky has gone quiet again during what is likely to be the…

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How plasma connects the Sun to the climate

 Guest essay by Robert Johnson How plasma connects the Sun to the climate The Aurora Borealis (Northern Lights) are a plasma phenomenon caused by charged particles from the solar wind entering the Earth’s upper atmosphere. Magnetic storms in the ionosphere, which have occasionally damaged satellites in orbit, are also evidence that the Earth’s upper atmosphere…

A number of NASA instruments captured detailed images of this coronal mass ejection on Aug. 31, 2012. Although CMEs can damage sensitive technological systems, this one just struck a glancing blow to Earth's atmosphere. New research that quasi-annual variations in solar activity, which may help experts better forecast these powerful events.
Credit Image by NASA

The Sun experiences seasonal changes, new research finds

Quasi-annual variations may hold clues to space weather From the National Center for Atmospheric Research/University Corporation for Atmospheric Research BOULDER -The Sun undergoes a type of seasonal variability with its activity waxing and waning over the course of nearly two years, according to a new study by a team of researchers led by the National…