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Frontiers of Science

Faculty Bios

Summer Ash

Summer Ash received her B.S. in Mechanical Engineering from Stanford University in 1998 and after working for several years in the Aerospace Industry, returned to school for a Masters in Space Science, cum laude, from the International Space University in Strasbourg, France in 2001. She did her doctoral work in Astrophysics at the Cavendish Laboratory, University of Cambridge, England. Her research explores the environments of local radio galaxies and how active galactic nuclei (a.k.a. supermassive black holes) play a role in the evolution of galaxies and galaxy clusters. Summer is currently a post-doc in the Department of Astronomy & Astrophysics and is a strong advocate for science education and scientific literacy.

Klejda Bega

Klejda Bega graduated from Caltech with a BS in Physics with Honors in 1999 and a PhD in Physics in 2004. She did her graduate work in particle physics at SLAC National Accelerator Laboratory, where she was involved in the measurement of parity violation in electron-electron scattering. After graduation she worked as a management consultant, assisting public and private sector clients in projects including strategic sourcing, data analysis, market research, process mapping and redesign, and staff training. She is currently a Postdoctoral Research Fellow at Columbia, conducting research in atomic, molecular and optical physics focusing on precise manipulation of ultracold atoms and molecules in optical lattices.
Fabiola Barrios-Landeros

Paul Cadden-Zimansky received a B.A. in Liberal Arts from the the Great Books program of St. John's College, Santa Fe, an MSc in Philosophy and History of Science from the London School of Economics, and a Ph.D. in Physics from Northwestern University. His background includes experimental research on nanoscale devices whose properties are dominated by effects arising from quantum mechanical coherence. He is currently a post-doctoral fellow in the Physics department, where he subjects the world's thinnest material (graphene) to the world's most powerful magnetic fields in order to study novel, two-dimensional electronic states of matter.
Yue (Merry) Cai

Yue (Merry) Cai did her doctoral research in Isotope Geology at Lamont-Doherty Earth Observatory of Columbia University. Her thesis explored the nature of the earth's upper mantle under convergent margin volcanoes in Mexico and the Arctic Gakkel Ridge. She received a B.S. from Peking University in 2001 in Petrology and Geochemistry. Her main research interest is in the applications of radiogenic isotopes in Earth Sciences. Merry is currently a Columbia Science Fellow in the Department of Earth and Environmental Sciences.

Nicholas Christie-Blick

Nicholas Christie-Blick is a Professor and former Chair of Earth and Environmental Sciences, and has been at Columbia University since 1983. He holds degrees in geology from the University of Cambridge, U.K. (B.A., 1974) and the University of California, Santa Barbara (Ph.D., 1979), and prior to joining Columbia was for three years a research geologist with Exxon in Houston, Texas. He teaches courses in sedimentary and field geology, receiving the Best Teacher Award in Earth and Environmental Sciences in 1996 and 2008 from the department's Ph.D. students, and in 2010 from the undergraduates (the inaugural year of that award). He is well known at Columbia for a very popular Geological Excursion to Death Valley, California over spring break. He also chairs the Rabi Scholars Program for research-oriented undergraduates in the sciences and mathematics. Christie-Blick's research deals with sedimentation processes, crustal deformation, and deep-time Earth history - currently with emphasis on the manner in which continental crust stretches prior to the formation of new ocean basins.
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Alenka Copic

Alenka Copic graduated with a B.S. in Biochemistry from the University of Ljubljana in Slovenia. She obtained a PhD in Cell Biology from University of California at Berkeley in 2006. Her research focus is on dissecting the fundamental processes of protein transport between intracellular compartments, using the tiny budding yeast as a model organism. She is currently a Columbia Science Fellow in the Department of Biological Sciences.

Virginia Cornish

Virginia W. Cornish graduated summa cum laude from Columbia University with a B.A. in Biochemistry in 1991, where she did undergraduate research with Professor Ronald Breslow. She earned her Ph.D. in Chemistry with Professor Peter Schultz at the University of California at Berkeley and then was a Postdoctoral Fellow in the Biology Department at M.I.T. under the guidance of Professor Robert Sauer. Virginia joined the faculty of the Chemistry Department at Columbia in 1999, where she carries out research at the interface of chemistry and biology, and was promoted to Associate Professor with tenure in 2004 and then Professor in 2007. Her laboratory brings together modern methods in synthetic chemistry and DNA technology to expand the synthetic capabilities of living cells. Her research has resulted in 59 research publications and several patents and currently is supported by multiple grants from the NIH and NSF. Virginia has been recognized for her research by awards including an NSF Career Award (2000), a Sloan Foundation Fellowship (2003), the Protein Society Irving Sigal Young Investigator Award (2009), and the American Chemical Society Pfizer Award in Enzyme Chemistry (2009). In addition to her research and teaching, Virginia enjoys spending time with her husband and their three children.

Hugh Crowl

Hugh Crowl received his B.A. in Astronomy and Physics from Wesleyan University in 2000 and his Ph.D. in Astronomy from Yale University in 2006. His research investigates how galaxies are affected by their environment, particularly how spiral galaxies in the nearby Virgo cluster are transformed by interactions with the million-degree gas that permeates the cluster. Prior to joining Frontiers of Science, he developed and taught a class at Hampshire College on how to communicate astronomy to the public using electronic media (such as podcasts and web videos). Hugh is currently a Columbia Science Fellow in the Department of Astronomy and Astrophysics.

Peter deMenocal
Peter deMenocal is a Professor and Associate Chair in the Department of Earth and Environmental Sciences at Columbia University.  At Lamont-Doherty Earth Observatory of Columbia University he uses stable isotopic and other geochemical analyses of marine sediments to understand how and why past climates have changed, with a specific interest in placing contemporary climate change trends within the context of climate changes during the prehistoric past. Current areas of research include: stability of warm climate periods, African monsoonal climate, ancient cultural responses to rapid climate change, and the role of climate change in evolution of early human ancestors. He was awarded the Lenfest Columbia Distinguished Faculty award in 2008 and is Editor in Chief of the scientific journal Earth and Planetary Science Letters. In 2008-2009 Peter was the winner of Earth and Environmental Sciences Best Teacher Award. He has a B.S. in geology from St. Lawrence University (cum laude), an M.S. in oceanography from the University of Rhode Island, Graduate School of Oceanography, and a Ph.D. in geology from Columbia University.  He was awarded an honorary Doctor of Science degree by St Lawrence University in 2009.
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Peter Eisenberger
Peter Eisenberger received his undergraduate degree from Princeton University and his Ph.D. degree from Harvard University in Applied Physics. His physics research at Bell Laboratories, Exxon Research and Engineering and Princeton University was in using x-rays to probe the properties of materials, including biological and self assembled thin films. He joined Columbia in 1996 as the Founding Director of the Earth Institue and Director of the Lamont Doherty Earth Observatory. He is currently a Professor in Earth and Environmental Sciences where he is doing research on a knowledge based approach to human co-evolution with the planet. He is also involved in developing a new science center that will utilize new approaches to learning.
Stuart Firestein
Stuart Firestein professor of Biological Sciences, is forging new understandings of sensory neuroscience through his groundbreaking research in olfacation. Among these breakthroughs, his laboratory was the first to link a specific olfactory receptor with a corresponding odor, a discovery that has been called the Rosetta Stone for understanding our sense of smell. Author of more than a hundred published papers, Firestein’s many honors include a Nakanishi Award for Excellence in Olfaction Research, a Human Frontiers of Science Award, a Whitehall Foundation Investigator Award, a McKnight Investigator Award and the R.H. Wright Award.
Allison Franzese
Allison Franzese received a B.S. from Stony Brook University with majors in Chemistry and Geology, followed by a Ph.D. from Columbia University in the Dept. of Earth and Environmental Sciences. She then did a research-based Postdoctoral Fellowship at the Institute of Marine Sciences of Rutgers, The State University of New Jersey, where she also taught a course in the Dept. of Earth and Planetary Sciences. Allison's research involves the application of isotope geochemistry to Paleoceanography. She is currently a Columbia Science Fellow in the Department of Earth and Environmental Sciences.
Melinda Han
Melinda Han received her B.A. in Applied Math and B.S. in Engineering Physics from UC Berkeley. She earned her Ph.D. in Applied Physics at Columbia University, where she studied electronic transport in graphene. Melinda spent one year working on boosting the solar spectrum utilization of single-junction solar cells as a postdoctoral research scientist at the National Renewable Energy Laboratory in Golden, Colorado before starting as a Columbia Science Fellow in the Chemistry Department.
Sharon Hoffmann
Sharon Hoffmann graduated from Columbia in 1999, and received her Ph.D. in 2009 from the MIT/Woods Hole Oceanographic Institution Joint Program in Oceanography. Her research uses stable and radioactive isotopes of various elements to reconstruct climate and ocean circulation both in the tropics, using stalagmites, and in the Arctic, using seafloor mud. She is currently a Columbia Science Fellow in the Department of Earth and Environmental Sciences.
Emlyn Hughes
Emlyn Hughes is a Professor and Deputy Chair in the Physics Department at Columbia University.  His research is presently focused on searches for new particles and new interactions using the Large Hadron Collider at CERN.  He joined the Columbia faculty in 2006.  He was previously a Professor of Physics at the California Institute of Technology, where he was a recipient of the Feynman Teaching Award in 1999.  He received his B.A. in Physics at Stanford University in 1982 and his Ph.D. from Columbia in 1987.
Ivana Hughes
Ivana Nikolic Hughes is the Associate Director for Frontiers of Science and Lecturer in Discipline in the Department of Chemistry. She graduated from Caltech with a B.S. in Chemical Engineering, with Honors, in 1999. While at Caltech, she was the recipient of three prestigious summer research fellowships and conducted research in novel therapeutics at the University of Nis in Serbia, at ETH in Zurich, Switzerland and at the University of Washington in Seattle. Dr. Hughes earned her PhD from Stanford University in 2005, working in the Department of Biochemistry as an American Heart Association Fellow. She studied enzymatic catalysis and protein evolution in the alkaline phosphatase superfamily. Prior to her involvement in Frontiers of Science, Dr. Hughes taught General Chemistry at Columbia.
Kathryn Johnston
Kathryn Johnston is an Astrophysicist, interested in understanding how our own Galaxy formed.  She pursues this goal using a combination of close collaborations with observational colleagues and computer simulations of galactic collisions.  She arrived in this field following an undergraduate degree in mathematics from Cambridge University,  a PhD in Astronomy and Astrophysics from UC Santa Cruz and a postdoctoral position at the Institute for Advanced Study in Princeton.   She joined the Columbia Astronomy Faculty in Fall 2006, after spending 7 years as an assistant professor at Wesleyan University.
David Kagan
David Kagan received his BA in mathematics and physics from Columbia University in 2002 and his PhD in Theoretical Physics at Cambridge University in 2007. His main interests are in quantum field theory and string theory and he is currently a Postdoctoral Researcher at the Physics department's Institute for Strings, Cosmology, and Astroparticle Physics (ISCAP).
Darcy Kelley
Darcy Kelley graduated from Barnard College and received her Ph.D. from the Rockefeller University. She has been a member of the Columbia faculty since 1981 and is currently Professor of Biological Sciences. In 2002 she was named Howard Hughes Medical Institute Professor. Darcy Kelley's research uses the South African clawed frog, Xenopus laevis , to study the neurobiology of social communication, with the goal of determining how one brain communicates with another and to study sexual differentiation, the hormone-directed developmental program that leads to male and female phenotypes.
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Liz Leininger
Liz Leininger received a B.A. in Biology with Honors from Swarthmore College, followed by a PhD in Neurobiology and Behavior from Columbia University. Her doctoral research at Columbia focused on the evolution of the neuromuscular mechanisms underlying vocalization in Xenopus (African Clawed frogs). Her research interests include neuroethology and the evolution of behavior and nervous systems. Liz is now a Columbia Science Fellow in the Department of Biological Sciences.

Don Melnick
Don Melnick is Thomas Hunt Morgan Professor of Conservation Biology in the Department of Ecology, Evolution, and Environmental Biology (E3B) at Columbia University. A faculty member of Columbia since 1981, he was born and raised in and around New York City, receiving his B.A. from NYU and his Ph.D. from Yale University. For over 25 years Professor Melnick has used molecular genetics to understand aspects of the ecology, behavior, evolution and conservation of vertebrates. This research has spanned organisms from frogs to elephants and continents from Central and South America to Asia and Africa. His work has been published in numerous technical journals and books, and covered by such popular media as The New York Times, The International Herald Tribune, and Discovery Channel. Most recently, Professor Melnick assumed the role of co-Chair of the U.N. Millennium Task Force on Environmental Sustainability, and with the other co-Chair, Ms. Yolanda Kakabadse, the former Minister of the Environment of Ecuador, he has assembled an international team that is charged with delivering an action plan for achieving environmental sustainability to the U.N. Secretary General by 2005.
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Bill Menke
William H. Menke graduated from MIT and received his doctorate from Columbia University. He is currently is a Professor in the departmant of Earth & Environmental Sciences, Deputy Director of Education of LDEO. William Menke's research uses seismic tomography methods to form images of the earth's deep interior. He has applied these methods to ridge axes and volcanoes in Iceland, fault systems in California, and mountains in the Himalayas.
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Kelly O'Donnell
Kelly O'Donnell received her B.S in Biology from Cornell University and completed her doctoral work at Stony Brook University. Her research is focused on the evolutionary ecology of invasive plants. She is specifically interested in how selection dynamics may alter the invasion process and the role of phenotypic plasticity in promoting invasion.
Paul Olsen
Paul Olsen the Arthur D. Storke Memorial Professor in the Department of Earth and Environmental Sciences, focuses his research on the evolution of continental ecosystems through study of the pattern, causes, and effects of climate change on geological time scales, mass extinctions, and the effects of evolutionary innovations on the Earth System. Much of his fieldwork deals with the beginning of the Age of Dinosaurs (250 to 180 million years ago), includes drilling and recovery of long rock cores from ancient lakes, and fossil collection from New York and New Jersey to Arizona and Morocco. A National Academy of Sciences member, Olsen has a B.A. in Geology and a Ph.D. in Biology both from Yale University.
Alessia Pannese
Alessia Pannese studied music theory (Diploma, Conservatorio di musica di Roma "Santa Cecilia"), law (Laurea, Università degli studi di Roma "La Sapienza"), veterinary medicine (Laurea, Università degli studi di Perugia), veterinary neuroscience (MPhil, University of Cambridge, UK), and neurobiology (PhD, Columbia University). For her doctoral work, she employed fMRI to investigate the neural correlates of the visual perception of one's own face. Subsequently, as research scholar and "Art & Neuroscience" fellow at Columbia University's Italian Academy for Advanced Studies, she employed EEG to study neural responses to the auditory processing of complex sounds and multistream music. As Frontiers of Science Fellow, she is interested in the neural and cognitive aspects of artistic expression, creativity, and aesthetic resonance. Alessia is an enthusiast proponent of crossdisciplinary discourse between science and the humanities.
Terry plank
Terry Plank is a Professor in the Department of Earth and Environmental Sciences at Columbia University. She joined the faculty in 2008, returning after having been a graduate student at Columbia's Lamont-Doherty Earth Observatory from 1985 to 1993, when she obtained her Ph.D. Born in a quarry in Delaware, Professor Plank has studied rocks her whole life -- granites and schists when an undergraduate at Dartmouth College, dredging volcanic rocks from the seafloor while a Lamont graduate student, drilling the oldest oceanic crust in the Pacific while a faculty member at the University of Kansas and Boston University, and most recently, collecting samples from recently erupted volcanoes in the Aleutians and Nicaragua. Professor Plank studies magmas associated with the plate tectonic cycle, their source, ascent and eruption. Much of her current research is focused on measuring the water content of magmas before they erupt. Plank is currently on tour as a Distinguished Lecturer for the Mineralogical Society of America.

David Schiminovich
David Schiminovich is a Professor in the Department of Astronomy at Columbia University. Professor Schiminovich received his B.S. in Mathematics and Physics from Yale University and his Ph.D. from Columbia University. Before his return to Columbia as a professor in 2004, he was a postdoctoral research fellow at Caltech and a visiting research scientist at Yale. Since 1997 he has been a lead scientist on the Galaxy Evolution Explorer (GALEX) project.
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Allyson Sheffield
Allyson Sheffield received a B.S. in Physics from New York University and her Ph.D. in Astronomy from the University of Virginia in 2007. After earning her doctorate, she was a Visiting Assistant Professor in Physics and Astronomy at Vassar College for 3 years. She studies the motions and chemical nature of stars in our Galaxy, with the goal of understanding how the Galaxy formed.

Helena Uthas
Helena Uthas received a M.Sc. in Physics from Lund University, Sweden in 2005. She has a background in observational astronomy, and during 2006 - 2008 she worked as a support astronomer at the Nordic Optical Telescope on La Palma, Canary Islands. She recently received her Ph.D. in astronomy from Southampton University in England, where her research was focused on late evolution of close binary star systems. Since 2003, Helena has actively worked with public outreach in her home country Sweden, where she leads seminars, both in schools and in the public. Helena is currently pursuing postdoctoral research at the Columbia Department of Astronomy and Astrophysics.