| Citation | Nick Kaiser is distinguished for initiating and developing several fields of research in large scale structure and cosmology. In each, he has provided highly original theoretical insight and applied these to obtain important observational rsults. His interpretation of the different clustering scales observed for galaxies and clusters via density peaks in a random field led to the concept of biasing in galaxy formation which has emerged as one of the central concepts necessary for comparing simulations and observations of the galaxy distribution. Likewise, his analysis of clustering patterns in real and redshift space formed the basis of the now established method for measuring the cosmic mass density. Kaiser played a central role in turning weak gravitational lensing into a mojor observational industry and one of the most promising new techniques in cosmology for the next decade. He developed a powerful methodology, still used today, for converting lensing signals into maps of the dark matter distribution, and to aid its practicality, contributed greatly through the provision of image processing tools for the observational community. Kaiser now leads the deveopment of Pan-STARRS, a multi-faceted observatory whose scientific achievements witll be wide-ranging across fields as diverse as cosmology and the origin of the solar system. |