  The AMS--Shuttle experiment is shown to be sensitive to test the hypothesis
on the existence of antimatter globular cluster in our Galaxy. The hypothesis
follows from the analysis of possible tests for the mechanisms of
baryosynthesis and uses antimatter domains in the matter dominated Universe as
the probe for the physics underlying the origin of the matter. The total mass
for the antimatter objects in our Galaxy is fixed from the below by the
condition of antimatter domain survival in the matter dominated Universe and
from above by the observed gamma ray flux. For this mass interval the expected
fluxes of antinuclei can lead to up to ten antihelium events in the AMS-Shuttle
experiment.
