at Berkeley from 1988–1992, and was on the Astronomy faculty at Harvard from 1975–1981. He was an Alfred P.Sloan Fellow from 1975–1979, and is a member of the American Academy of Arts and Sciences and the National Academy of Sciences. He is the current Chairman of the NRC Committee on Astronomy and Astrophysics and has served as Chairman of the NRC Panel on Cosmology, and was a member of the NRC Panel on Ground-Based Optical and Infrared Astronomy, as well as the Task Group on Space Astronomy and Astrophysics. His research interests are in physical cosmology, especially large scale structure in the Universe. Davis resides in Berkeley, California with his wife and two sons.

John Ellis is a faculty member of the Theory Division at CERN. His research interests include: standard model phenomenology, looking beyond the standard model and trying to make sense of the superstring in particular, the interface between particle physics and cosmology and understanding why quantum mechanics are valid.

Sandra Faber is a Professor of Astronomy at UC Santa Cruz and at the UCO/lick Observatory. A graduate of Swarthmore, she completed her Ph.D. at Harvard but did her dissertation at the CIW’s Department of Terrestrial Magnetism, where she was greatly influenced by Vera Rubin. After finishing her degree in 1972, she came to Lick Observatory where she initially worked on accurate observations of nearby galaxies, but later moved toward the more theoretical interpretation of galaxy origins, the nature of the early universe and cosmology. Faber was deeply involved in the Hubble Space Telescope with the Wide Field Camera Team, and in the construction of the world’s largest telescope, the 400-inch Keck Telescope in Hawaii. Faber has also been very active in combating light pollution, which threatens many of our largest optical telescopes. Her honors include the Bok Prize of Harvard University in 1978, distinction by Science Digest as one of the best American Scientists under 40 in 1984, and the Dannie Heineman Prize of the AAS in 1986. She was elected to the NAS in 1985.

Wendy Freedman is an astronomer at the Observatories of the Carnegie Institution of Washington in Pasadena, California. A native of Toronto, Canada, she earned her doctorate in astronomy and astrophysics from the University of Toronto in 1984. She received a Carnegie Fellowship at the Observatories in 1984, and in 1987 joined the permanent faculty. Freedman’s current principal areas of interest are the extragalactic distance scale and observational cosmology, including the measurement of accurate distances to galaxies using Cepheid variables. She is also interested in the evolution of galaxies, particularly in the study of nearby galaxies where individual stars can be resolved and where the time evolution can be studied in detail. Freedman is one of the three principal investigators of the Hubble Space Telescope Key Project on the Extragalactic Distance Scale. She is a member of the NRC’s Committee on Astronomy and Astrophysics and a member and this year’s chair of the Executive Board for the Center of Particle Astrophysics.

Margaret J.Geller is a Professor of Astronomy at Harvard University and Senior Scientist at the Smithsonian Astrophysical Observatory. She has made major contributions to the understanding of large-scale structure in the universe. Prof. Geller is a MacArthur Foundation Fellow and a member of the National Academy of Sciences.

Jack Halpern is the Vice President of the National Academy of Sciences. He is also the Louis Block Distinguished Service Professor in the Department of Chemistry at the University of Chicago.

John Huchra is an astronomer at the Harvard-Smithsonian Center for Astrophysics and Professor of Astronomy at Harvard. He is also the Director of the F.L.Whipple Observatory in southern Arizona. He was born and raised in New Jersey and obtained degrees in physics from MIT (1970) and astronomy from Caltech (1977). His primary field of study is observational cosmology— the study of the structure and evolution of the Universe. He also works on the properties of galaxies and quasars. Huchra is a member of the American Academy of Arts and Sciences, the National Academy of Sciences, and numerous professional societies. He was awarded the Aaronson Prize in 1992, and, with Margaret Geller, the American Association for the Advancement of Science Newcomb-Cleveland Award in 1989. In his spare time, he likes to hike, canoe and ski, and generally spend time on mountain tops. He lives in Lexington, Massachusetts, with his wife (a Professor at MIT) and young son.

Cecilia Jarlskog is a Professor at the Institute of Physics of the University of Stockholm and a member of the Royal Swedish Academy of Sciences.

Raul Jimenez is currently a Research Fellow at the Royal Observatory in Edinburgh. He received his B.Sc. in theoretical physics from the Universidad Autonoma de Madrid, after which he moved to Copenhagen and obtained his Ph.D. in 1995 at the Nordic Institute for Theoretical Physics (Nordita) working on alternative methods to determine globular cluster ages. His main research interests are the age of globular clusters, high redshift galaxies, galaxy formation and star formation and the evolution of large scale structure in the Universe. He is especially interested in the problem of galaxy formation and star formation at high redshift and on ways to date very precisely the ages of globular clusters.

Nick Kaiser is the newest faculty member at the Institute for Astronomy at the University of Hawaii. Kaiser obtained his Ph.D. in Astronomy in 1982 from the Institute of Astronomy in Cambridge (supervisor M.J.Rees). He then held postdoctoral positions at Berkeley, UC Santa Barbara and Cambridge, before moving to Toronto in 1988 to take a faculty position at the Canadian Institute for Theoretical Astrophysics supported by a fellowship from the Canadian Institute for Advanced Research. Nick has worked on a variety of cosmological topics including microwave background anisotropy; galaxy formation; bulk-flows and galaxy clustering. In the past few years he has concentrated his efforts on developing the theoretical and observational techniques for weak gravitational lensing as a probe of the dark matter distribution in the Universe.

Robert Kirshner is a Professor of Astronomy at Harvard University and Chairman of Harvard’s Astronomy Department. He received his Ph.D. in Astronomy from Caltech in 1975, and was a postdoc at the Kitt Peak National Observatory. In 1976, Kirshner moved to the University of Michigan as an Assistant Professor. At Michigan, Kirshner was awarded an Alfred P.Sloan Fellowship and won the University’s Russel Prize for Research and Teaching. He was promoted to Professor in 1982 and became Department

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