GAMMA-400 (Gamma Astronomical Multifunctional Modular Apparatus) scientific complex is designed to obtain the data on determining the dark matter nature in the universe, to develop the theory of origin of high-energy cosmic rays and the elementary particle physics, to investigate cosmic gamma-ray emission in the high-energy range of 20 MeV – 1000 GeV and X-ray emission in the energy range of 5-30 keV, to detect cosmic rays, and to search for and study gamma-ray bursts.

The GAMMA-400 design and investigations are performed within the framework of the Russian Federal Space Programs for 2006-2015 and 2016-2025.

GAMMA-400 scientific goals: Modern state of the fundamental researches on cosmology, astronomy, high-energy and cosmic-ray physics issues the challenges, which cannot be solved without attracting the results of investigations on the extra-atmospheric very high-energy gamma-ray astronomy (108-1012 eV), as well as simultaneous investigations of Galactic cosmic-ray electrons and positrons. On the basis of the latest results in the gamma-ray astronomy, the results on dark matter particle searching, as well as previous researches on the GAMMA-400 project, the GAMMA-400 main scientific investigations and goals are formulated.