"I am a theoretical physicist, and my research is in cosmology, astrophysics, and elementary-particle theory. My primary research interests vary from year to year, but my main focus has been on particle dark matter, inflation and the cosmic microwave background, and cosmic acceleration. I have also worked on neutrino and nuclear physics and astrophysics, large-scale-structure and galaxy formation, gravitational waves, gravitational lensing, phase transitions in the early Universe, alternative-gravity theories, the first stars and the epoch of reionization, and a bit in stellar and high-energy astrophysics."

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"My interests include the growth of structure in the dark matter content of the Universe and developing models of the formation and evolution of galaxies. My research focuses on predicting the properties of populations of galaxies, such as their distributions of mass, luminosity and size together with statistical measures of their distribution through space. I also work on detailed models of individual galaxies, such as the Milky Way. My work spans the spectrum of phenomenological (e.g. constructing mock datasets for forthcoming telescopes using model universes) to fundamental (e.g. developing new methods for computing the rate of growth of structure in the dark matter component of the Universe)."

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"My research interests include theoretical aspects of cosmology, field theory, and gravitation. The goal is to learn about fundamental physics by studying the structure and evolution of the universe."

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"What is the nature of the dark matter and dark energy that dominate the universe? I am focused on efforts that try to better understand these mysterious components. These efforts tend to have significant technology development aspects because, to understand such elusive phenomena, one sometimes has to build a better mousetrap."

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"My research interests are in the area of cosmology, i.e. the study of the origin, structure, and evolution of the universe. Some of my current projects involve observations that help us test cosmological models; these mostly involve large research collaborations. Others involve the rather difficult task of figuring out how to analyze the current and future cosmological data sets."

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"My research interests are in theoretical high energy physics, in particular in quantum field theories and string theory. I am a member of Caltech Particle Theory Group."

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"My research interests include cosmology, elementary particle physics and nuclear physics. I am particularly interested in theoretical issues that can be compared with experiment (or observation)."

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"My research interest is at the intersection between astrophysical phenomena and particle physics, especially using weakly interacting particles such as neutrinos and dark matter. I am also interested in high-energy astrophysics including supernovae, gamma-ray bursts, and active galactic nuclei."

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"I am a cosmologist interested in questions related to the origin, properties and formation history of the Universe."

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"My research interests include broad topics in theoretical astrophysics, including cosmology, particle astrophysics, and gravitational waves. Occasionally, I have contributed to our understanding of the outer Solar system, such as giant planets and Kuiper Belt objects. While a theorist, I have completed observational astronomy projects at observatories in Hawaii, Chile, and Kitt Peak and continue to analyze and interpret data when necessary. I work closely with several experimental astrophysics groups at Caltech and JPL who are planning and designing ground, rocket/balloon-borne, and satellite experiments for various purposes and provide support to them primarily from the theory and analysis side."

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"My interest include: Physical Cosmology, Cosmic Background Radiation, Large-Scale Structure of the Universe, Galaxy Formation, Gravitational Lenses, Computational Astrostatistics, Structure of, and Science Extraction from Large Astronomical Data Repositories, Development of the Virtual Observatory"

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"I am interested in understanding the universe in which we live, including its overall structure, composition, origins and evolution. Analyzing cosmic microwave background data, I helped to show that the universe is flat. I have done extensive work on dark matter and galaxy clusters, and am part of the Planck satellite science team."

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