  We report on the first realization of heteronuclear dipolar quantum mixtures
of highly magnetic erbium and dysprosium atoms. With a versatile experimental
setup, we demonstrate binary Bose-Einstein condensation in five different Er-Dy
isotope combinations, as well as one Er-Dy Bose-Fermi mixture. Finally, we
present first studies of the interspecies interaction between the two species
for one mixture.
