  The properties of strange hadrons, i.e. of kaons and hyperons, in the nuclear
medium are discussed in connection with neutron star properties and
relativistic heavy-ion collisions. Firstly, the relevant medium modifications
of a kaon in a medium as provided by heavy-ion collisions is critically
examined within a coupled channel calculation. We demonstrate, that particle
ratios for kaons are not a sensitive probe of in-medium effects while the K-
flow is more suited to pin down the K- optical potential in dense matter.
Secondly, the interaction between hyperons is studied and may form bound states
which can be produced in relativistic heavy-ion collisions. Signals for the
detection of strange dibaryons by their decay topology and/or in the invariant
mass spectra are outlined.
