We report some new exact instantons in general relativity, describing their
relevance to cosmology. These solutions are Kahler and fall into the symme
try classes of Bianchi types VI0 and VII0, with the matter content of a sti
ff fluid. The qualitative behaviour of the solutions is presented, and we c
ompare it to the known results of the corresponding self-dual Bianchi solut
ions. We also give axisymmetric Bianchi VII0 solutions with an electromagne
tic field.