This volume covers the developments in those areas of modern physics to which Andrei Sakharov made contributions. Leading scientists present the status and perspectives of research in high-energy physics, cosmology, astrophysics, classical and quantum gravity, plasma physics, nuclear physics, and extreme states of matter. Key speakers include: B. Allen, F. Calogero, B. De Witt, V. Fortov, E. Fradkin, V. Ginzburg, A. Gurevich, B. Kadomtzev, A. Linde, C. Llewellyn-Smith, A. Neveu, L. Okun, J. Schwarz, W. Sutherland and J. Wheeler.
