MAGIC is currently the largest single dish Cherenkov telescope
operating since September 2004. Since then it has been delivering a
wealth of exciting physics results from its observations in the Very
High Energy (VHE: E>100 GeV) region of galactic and extragalactic
sky. In fact the Cherenkov technique match, or exceed, the sensitivity
of space telescopes at lower energies and hence provide complementary
observations to the EGRET, AGILE and Fermi missions.
VHE gamma-rays are probes of the non-thermal Universe. Non-thermal
emission has a growing importance in understanding the non-thermal
Universe, its objects and its evolution. There is now evidence for
more than 30 extragalactic and 60 galactic sources emitting in the VHE
band. Emission sites have been clearly identified in some AGN
relativistic jets and in the shells of supernova remnants. More
intriguing are recent detections of signals from two radio-galaxies
(M87, Cen-A) and from a starburst galaxy (NGC 253).  Microquasars such
as LS I+61 303 are confirmed sites of periodic gamma-ray production.
In this talk we will review the most recent results obtained by MAGIC
and discuss their impact in the high-energy astrophysical
context. Emphasis is put in the MAGIC program for multi-wavelength
(MWL) campaigns and on the key-role of MWL observations, aimed at
understanding the physical properties of the emission source and its
environment.