How did turtles get their shells?: Scientific American Blog

How did turtles get their shells?: Scientific American Blog

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NASA - The Sun Shows Signs of Life

After two-plus years of few sunspots, even fewer solar flares, and a generally eerie calm, the sun is finally showing signs of life. "I think solar minimum is behind us," says sunspot forecaster David Hathaway of the NASA Marshall Space Flight Center. His statement is prompted by an October flurry of sunspots.

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