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From: National Science Foundation Update <nsf-update@xxxxxxx>
Date: Mon, 21 Sep 2009 11:36:40 -0500 (CDT)
Subject: More to Solar Cycle than Sunspots
More to Solar Cycle than Sunspots
Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the sun's impact on Earth over the course of the 11-year solar cycle. The study, led by scientists at the National Center for Atmospheric Research (NCAR) and the University of Michigan, finds that Earth was bombarded last year with high levels of solar energy at a time when the sun was in an unusually quiet phase and sunspots had virtually disappeared.
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