We ask Michelle Thaller 10 questions, and she talks a lot about Carl Sagan. Michelle Thaller is an astronomer at NASA's Goddard Space Flight Center. She loves to study binary stars and the life cycles of the stars. In her off-hours, Michelle often puts on about 30 lbs of Elizabethan garb and performs intricate Renaissance dances.

Exclusive funding for "The Secret Life of Scientists & Engineers" provided by the Alfred P. Sloan Foundation.

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