  The ESA INTErnational Gamma-Ray Astrophyisics Laboratory (INTEGRAL) is
composed of two main instruments (IBIS and SPI) for the gamma-ray astrophysics
(20 keV - 10 MeV), plus two monitors (JEM-X and OMC) for X-ray and optical
counterparts. It was launched on October 17th, 2002, from the Baikonur
cosmodrome (Kazakhstan) and it will be active at least up to 2008. A selection
of its main scientific contributions obtained to date are presented.
