THE SUN’S SNEAKY VARIABILITY

Oct. 27 – It might not be obvious to the naked eye, but the sun is a variable star. A sensor slated for launch onboard NASA’s Solar Dynamics Observatory will probe the sun’s “sneaky variability” with better time and spectral resolution than ever before.
http://science.nasa.gov/headlines/y2009/27oct_eve.htm?list1110881

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