A large number of outstanding problems in physics and astrophysics are
connected with studies of cosmic rays (CRs)
and the associated diffuse emission (radio, microwave, X-rays, gamma rays)
produced during their propagation.
Among these problems are indirect searches for dark matter, the origin and
propagation of CRs, particle acceleration
in CR sources, such as SNRs, and the interstellar medium, studies of our local
Galactic environment, CR propagation in the heliosphere as well as many
New or improved instrumentation to explore these open issues is ready or under
development. The high quality data
collected by such experiments as INTEGRAL, EGRET, HESS, Magic, Milagro,
Veritas, ACE, TIGER, BESS,
PAMELA, CREAM, ATIC, TRACER, and to be collected by GLAST are becoming
for the understanding of the Universe that we live in.
In this talk we will discuss recent developments in astrophysics of cosmic rays.