  The instrumentation plan for the European-Extremely Large Telescope foresees
a Multi-Object Spectrograph (E-ELT MOS). The MOSAIC project is proposed by a
European-Brazilian consortium, to provide a unique MOS facility for
astrophysics, studies of the inter-galactic medium and for cosmology. The
science cases range from spectroscopy of the most distant galaxies, mass
assembly and evolution of galaxies, via resolved stellar populations and
galactic archaeology, to planet formation studies. A further strong driver are
spectroscopic follow-up observations of targets that will be discovered with
the James Webb Space Telescope.
