The University of Illinois' National Center for Supercomputing Applications (NCSA), one of the five original centers in the National Science Foundation's Supercomputer Centers Program, opened its doors in January 1986. Since then, NCSA has contributed significantly to the birth and growth of the worldwide cyberinfrastructure for science and engineering, operating some of the world's most powerful supercomputers and developing the software needed to efficiently use these systems (for example, NCSA Telnet and, in 1993, NCSA Mosaic™, the first readily available graphical Web browser). Today the center is recognized as an international leader in deploying robust high-performance computing resources and in working with research communities to develop new computing and software technologies. The center focuses on: Developing and deploying powerful, reliable computing, data, and networking resources that enable researchers to solve the most demanding science and engineering problems in a timely manner. We develop and explore innovative architectures and techniques to achieve petascale science. Working with research communities to develop the tailored cyberenvironments that provide the means to fully exploit the extraordinary resources available on the Internet (computing systems, data sources and stores, and tools). Researching and developing software, techniques, and tools to improve national cybersecurity and to help law enforcement better respond to cyberattacks. Providing insights into complex systems and sharing the thrill of scientific discovery with the broadest possible audience through artful visualizations of scientific phenomena. Preparing the next generation of scientists and engineers to effectively use the growing national cyberinfrastructure. The National Science Foundation, the state of Illinois, the University of Illinois, industrial partners, and other federal agencies support NCSA. Cyberenvironments and Technologies Division All the hammers and all the nails in the world can't build a house; tools alone just aren't enough to get the job done. It's the same in the world of cyberscience. The advantages of the national cyberinfrastructure won't be realized without scientists and engineers who are empowered to tap its capabilities. To that end, NCSA is developing cyber¬environments that will enable scientists and engineers to take full advantage of the nation's cyber-resources to drive scientific and engineering advances. Cyberenvironments will integrate distributed computing and data resources into end-to-end scientific processes, providing a boost in productivity. Cyberenvironments include scientific and engineering applications, graphical user interfaces and portals for easy interaction with the applications, and workflow and collaboration software, as well as an integrated data analysis and visualization capability. They couple traditional desktop scientific and engineering applications with national and global cyber-resources to provide researchers an unprecedented capability to assemble, integrate, automate, and manage complex, collaborative projects. Cyberenvironments will ensure that the capabilities in the national cyberinfrastructure can be brought to bear on the most challenging science and engineering issues facing the nation and the world.