Time of critical experiments in fundamental physics and cosmology
Experiments which are planned to be done soonest in a Large Hadron Collider with using of Probe SNAP and Gamma Ray Large Area Space Telescope GLAST have to give new facts permitting to determine the nature of "dark substance" and "dark energy". In the article a methodological analysis of different variants of these experiments' results is given with his importance for the scientific outlook and for the future ways of scientific development.