Hierarchic fractal structure of the Universe enabling to redefine its observed characteristics is considered. According to the hypothesis the Universe consists of an infinite number of spatial and hierarchic fractal levels of matter that are nested within each other (fractals mean self-similar events, processes and spatial forms) and represented as moving spaces, presumably of a spherical shape. Distinguished in ascending order are the following basic fractals of the Universe that are conventionally connected with the kinds of matter interaction: nuclear, atomic, electromagnetic and gravitational. It can also be assumed that there exist fractals which are older than the gravitational ones. Each fractal is characterized by finite geometrical dimensions and finite value of its own energy, consequently, by the finite value of the spatial density of energy. Whenever the lower hierarchic level fractals (nuclear) transit to the higher levels (gravitational), the space and spatial density of energy inflate, and their information variety increases (as a sum of informational variety of spatial and energy forms and their levels). At transit from the lower level fractals to the higher level fractals the energy density inflates which leads to that (i) each fractal type is characterized by the finite maximum transfer velocity of internal physical interaction, and (ii) this velocity increases. It means that the maximum transit physical interaction velocity within the gravitational fractal exceeds the velocity of light which is the maximum for the electromagnetic fractal while the maximum transit physical interaction velocity of the atomic fractal is lower than the velocity of light (it is reduced by the fine structure constant). The fractal structure of the Universe hypothesis makes it possible for the authors to put forward several other assumptions: dark energy does not exist and the apparent effect of its presence in the electromagnetic fractal as well as appearance of asymmetry between the matter and antimatter are explained by its finite geometrical dimensions, spherical shape and rotational motion of this sphere around at least one of the axes.