On Friday, the sun erupted with the most powerful class of eruption, an X1.1 solar flare -- the biggest in months.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/1O4tRJGnQQA" height="1" width="1"/>
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On Friday, the sun erupted with the most powerful class of eruption, an X1.1 solar flare -- the biggest in months.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/1O4tRJGnQQA" height="1" width="1"/>