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Jose Rene "J. R." Martinez (born June 14, 1983) is an American actor, motivational speaker and former U.S.
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The Sun as a Variable Star: Solar and Stellar Irradiance Variations: Proceedings of the 143rd Colloquium of the International Astronomical Union held in the Clarion Harvest House, Boulder, Colorado, June 20–25, 1993 0 out of 5 stars based on 0 ratings.