Low-energy quantum gravity leads to another picture of the universe

If gravitons are super-strong interacting particles and the low-temperature graviton background exists, the basic cosmological conjecture about the Dopplerian nature of redshifts may be false: the full magnitude of the cosmological redshift would be caused by interactions of photons with gravitons. Non-head-on collisions with gravitons will lead to a very specific additional relaxation of any photonic flux and gives the possibility of another interpretation of supemovae la data - without any kinematics. These facts may implicate a necessity to change the standard cosmological paradigm. Some features of a new paradigm are discussed. In the frame of this model, every observer has two different cosmological horizons. One of them is defined by maximum existing temperatures of remote sources - by big enough distances, all of them will be masked with the CMB radiation. Another, and much smaller one, depends on their maximum luminosity - the luminosity distance increases with a redshift much quickly than the geometrical one. If the considered quantum mechanism of classical gravity is realized in nature, then the existence of black holes contradicts the equivalence principle. In this approach, the two fundamental constants - Hubble's and Newton's ones - should be connected between themselves. The theoretical value of the Hubble constant is computed. Also, every massive body would be decelerated due to collisions with gravitons that may be connected with the Pioneer 10 anomaly.