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Friday, March 08, 2013
'Sunspot numbers are well below their values from 2011, and strong solar flares have been infrequent,' the space agency says. The image above shows the Earth-facing surface of the Sun on February 28, 2013, as observed by the Helioseismic and Magnetic Imager (HMI) on NASA's Solar Dynamics Observatory. It observed just a few small sunspots on an otherwise clean face, which is usually riddled with many spots during peak solar activity. Advertisement
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