We discuss the importance of plasma physics in various areas of cosmology a
nd astrophysics: (1) the primordial plasma spectrum, (2) the cosmic microwa
ve background, (3) the large-scale structure of the universe, (4) reionizat
ion and the metalicity of the primordial universe, (5) the first objects, (
6) the primordial magnetic field, ('7) clusters of galaxies, (8) galaxy for
mation, (9) star formation, (10) nuclear reactions, (11) accretion onto bla
ck holes, (12) cosmic rays, (13) relativistic jets and (14) gamma ray burst
ers.