We examine the characteristics of nucleosynthesis in 'hypernovae', i.e.,
supernovae with very large explosion energies (\gsim 10^{52} ergs).
Implications for the cosmic chemical evolution and the abundances in M82 are
discussed.Comment: To appear in 'Cosmic Evolution' Conference at IAP, Paris, honoring
Jean Audouze and Jim Truran, 13-17 Nov 200
