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Faces of Science: David Helfand

Mariana Cook’s book, “Faces of Science,” portrays 77 scientists who have made many of the most important discoveries of our time. Each photograph is accompanied by a personal essay written by the scientists. The portraits in this online series are accompanied by excerpts from those essays. For more information, please visit Mariana Cook’s website:

David Helfand - Photos and Text ©Mariana Cook “Faces of Science”

It is convenient, I have found, to develop a neatly packaged mythology about one’s life to present to new acquaintances, to colleagues, even at times to oneself. While perhaps not fully consistent with the philosophy expected from a late-1960s coming-of-age, this approach does comport with my much maligned motto “The examined life is not worth living” (much maligned, that is, by my artist spouse).
An essential part of my myth involves my career choice while at Amherst College. Although as politically active and appropriately left-wing as most of my compatriots in the class of ’72, I had a great deal of trouble taking seriously the mantra of “relevancy” which droned on in the background of every conversation about career choice in those halcyon days; assertions concerning the social relevance of investment banking and plastic surgery always seemed to me a rifled strained. And so with characteristics irreverence, my mythology goes, I chose the most irrelevant career I could think of–understanding the origin and evolution of the universe.

It happens to be the case that astronomy is also great fun. I left Amherst 27 years ago and, having discovered the center of the universe (Manhattan), I now seek to explore its edges. This has sometimes meant frustrating nights on a mountaintop in Chile listening to the rain drumming on the shuttered telescope dome. It has included scrambling for support for my students, sitting through mind-numbing NASA committee meetings, and engaging (a trifle more often than absolutely necessary, I must confess) in those titanic academic battles in which the warriors are so vicious because the stakes are so small. But each time a few photons of light, having traveled uninterrupted for 11 billion years, are captured by my telescope and an image of a distant corner of the universe never before glimpsed scrolls up on my computer screen, I revel in my decision to be irrelevant.

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Mariana Cook

    MARIANA COOK is a fine art photographer whose work is held in numerous institutional and private collections, including The Metropolitan Museum of Art and The Museum of Modern Art, New York City; The J. Paul Getty Museum, Los Angeles; The Museum of Fine Arts, Boston; The Museum of Fine Arts, Houston; Bibliothèque Nationale and Musée d’Art Moderne de la ville de Paris; and the National Portrait Gallery, Washington, DC. Ten books of her work have been published, including the best-selling Fathers and Daughters (1994) and the most recent, Justice: Faces of the Human Rights Revolution (2013). Stone Walls: Personal Boundaries was her first book of landscapes, which was released in 2011 to much acclaim. Her website is