Time has come to probe for the presence of weakly-interacting massive parti
cles in the Milky Way. These species may contribute a substantial fraction
to the mass of our galaxy. They may dominate its gravity and dynamical bala
nce on large scales. Their mutual annihilations would yield several indirec
t signatures that are potentially detectable on Earth as extra-components t
o the various cosmic radiations. I will review those indirect signatures an
d show that the situation has significantly evolved since the last 1997 TAU
P Conference. In particular, neutralinos may have followed the collapse of
the massive black hole that sits at the galactic center. If so, the resulti
ng dark matter spike would be such a strong gamma-ray and neutrino source t
hat the entire supersymmetric parameter space could be within reach of the
near future instruments.