The sun is quiet -- too quiet
April 24, 2009, 11:48 AM
Astronomers have long thought that solar activity waxed and waned on an 11-year cycle. But while the sun is due for uptick of activity, 2008 saw 50-year lows in radio emissions and solar wind -- and a 100-year low in sunspots. Read more...
astronomy, solar, solar activity
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