From the front page of TED's blog:
Lucianne Walkowicz, stellar astronomer: Lucianne looks for light in the sky. Working on NASA’s Kepler mission, she studies starspots -– what she calls the sun’s “freckles” –- and stellar flares to understand stellar magnetic fields. Examining the dynamic magnetic effects of the sun’s activity gives us clues as to whether planets are inhabitable. “It’s starlight that sets the stage for life in the universe.”
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