I am an astrophysicist with research interests ranging from the search for planets around nearby stars to the shape of the universe. Using microwave background observations from the WMAP Satellite and the Atacama Cosmology Telescope, I have measured the age, shape, and composition of the universe. Our observations have played a significant role in establishing the standard model of cosmology. I am currently co-chair of the WFIRST science team. WFIRST will study the nature of dark energy, complete the demographic survey of extrasolar planets, characterize the atmospheres of nearby planets and survey the universe with more than 100x the field of view of the Hubble Space Telescope. I have played a significant role in the design of the coronagraph and is shaping the overall mission. I am now emeritus faculty at Princeton University. While I no longer teach, I continue to work with Princeton graduate students and postdoctoral fellows. I have been the primary mentor for over 31 graduate students, 40 postdoctoral fellows and 60 undergraduates. Many of my mentees have gone on to do exciting work across a range of fields. I have received a number of prizes and awards for my work including: Breakthrough Prize in Fundamental Physics (2018); NASA Exceptional Public Service Award (2017); Dannie Heineman Prize in Astrophysics (2015); Nature's Ten People Who Mattered in 2014; AAS Kavli Lecturer (2014); President's Distinguished Teaching Award (2013); Fellow, APS (2013); Time: "25 Most Influential People in Space" (2013); American Academy of Arts and Sciences (2012); Gruber Prize (as part of WMAP team) (2012); Shaw Prize in Astronomy (2010); Citation Laureate (2010); National Acad. of Sciences (2008); John T. and Helen D. MacArthur Fellowship (2001); Time: "One of America's Top Scientists" (2001); AAS Helen B. Warner Prize (1994); NSF Presidential Young Investigator Award (1988); Alfred P. Sloan Research Fellow (1988). According to google scholar, I have an h index of 120 and over 100,000 citations. I am the Founding Director of the Center for Computational Astrophysics at the Flatiron Institute. I served as Department Chair from 2/2006- 6/2016 and served as Associate Chair from 2/1999 - 1/2006. I have chaired the NAS Space Study Board and was a member of the NASA Advisory Committee. I now serve on JPL Advisory Committee. I also serve as Co-Chair of Global Coordination of Ground and Space Astrophysics Working Group of the International Astronomical Union. Here are links to a list of my recent and most-cited papers. Room 113, Peyton Hall, Princeton, NJ, 08544 Phone: (609) 258 3589 Fax: (609) 258 8226 email: dns at astro DOT princeton DOT edu - FRS 126 Imagining Other Earths (FRS 126) (Spring 2013) - AST 303 Astronomical Methods (Next taught, Fall 2014. Taught by Strauss, Fall 2012) - AST 524/PHY 564 Cosmology (AST 524/PHY 564) I will be teaching a freshman seminar in spring 2019 I am the Charles A. Young Professor of Astronomy on the Class of 1897 Foundation. I am an Associate Faculty Member in the Physics Department and in the Mechanical and Aerospace Engineering Department. My CV and recent publications. - Presidential Lecture Series: Illuminating the History of the Universe with the Cosmic Microwave Background - Introduction to WFIRST/AFTA Mission - Recent Results from ACT talk at IPMU (Video) - New Cosmology Talk - Dark Energy Talk - Talk on Terrestrial Planet Finding - You Tube talk at Dartmouth on Dark Energy, Dark Matter, and Inflation - My popular talk on "Taking the Universe's Baby Picture" is available on-line at UCTV. Another version of the lecture is also available at iTunes U. - Princeton University Observatory and Library - Other astronomy resources - Atacama Cosmology Telescope - CMB Experiments at Princeton - Cosmology at Princeton - Princeton Center for Theoretical Physics - WMAP web page - MacArthur Fellowship Announcement and Party Pictures - Time Magazine: America's Best Scientists - Earth and Sky - AAS home page and AAS Grants and Prizes Page - ADS Abstract Service - Recent Picture of David Spergel - Old Pictures of David Spergel - Jean Quashnock, Professor Physics, Carthage College - Katherine Long, Associate Professor of Mathematics and Statistics, Texas Tech University - Arlie Petters, Benjamin Powell Professor of Mathematics, Duke University - Suvendra Dutta, Technical Staff, MIT Lincoln Laboratory - Fred Persi, V.P. of Products and Technology, Quantapoint - Hong Sheng Zhao, Lecturer, University of St Andrews - Julianne Dalcanton, Prof., Univ. of Washington - James Rhoads, Goddard Space Flight Center - Jeremy Kepner, Director, Lincoln Laboratory Supercomputing Center - Maki Suginohara, National Astronomical Observatory of Japan - David Goldberg, Prof., Drexel University - S. Peng Oh, Prof., UC Santa Barbara - Eiichiro Komatsu, Director, Max Planck Institute, Garching - Hiranya Peiris, Director, Oskar Klein Centre, Stockholm - Niayesh Afshordi, Associate Professor, Perimeter & Waterloo - Joe Hennawi, Associate Professor, UCSB - Simon Dedeo, Assistant Professor, CMU - Ed Sirko, Software Engineer, Virtualheroes - Janice Hester, Arizona College Prep - Beth Reid, Lead Data Scientist, The Climate Corporation - Sudeep Das, Netflix - Shirley Ho, Group Leader, Flatiron Institute - Aurelien Fraisse, Associate Research Scholar, Princeton - Kheegan Lee, Asst. Professor, IPMU (Tokyo) - Blake Sherwin, Lecturer, Cambridge University, UK - Colin Hill, IAS - Simone Ferraro, Research Staff, LBNL - Emmanuel Schaan, Postdoctoral Fellow, Berkeley - Will Coulton, Postdoctoral fellow, Cambridge University, UK - Semyeong Oh, Postdoctoral Fellow, Cambridge University, UK - Kris Pardo *19 (After 9/19: Postdoctoral Fellow, JPL) - Christina Kreisch *21 - Shaw Prize - Science Citation Laureate - MacArthur Fellowship - Gruber Prize (as member of WMAP team) - American Academy of Arts and Sciences - National Academy of Sciences - Time Magazine 25 Most Influential Space Scientists - Heinemann Prize (2015) - Nature "10 who Mattered in 2014" - Breakthrough Prize in Fundamental Physics (2018)