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Astrophysicist and author Mario Livio wonders what drives human curiosity, what makes everyone, from children to experienced scientists, ask, "Why?" That's the name of his new book, a survey of the science of curiosity. What parts of the human brain work toward solving mysteries and achieving a higher understanding of life on Earth and among the stars? Who among us are the most curious? Livio, who worked at the Space Telescope Science Institute in Baltimore from 1991 to 2015, is the author of five earlier books on science. He will discuss his latest, "Why? What Makes Us Curious," at the Ivy Bookshop on Thursday, July 13, at 7 p.m.

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