The study displays that a gravitational singularity generates enormous amount of synchronized, low frequency photons. Electric dipoles in atoms create resonance with these photons and they are then re-emitted to dipoles in other atoms. The mutual flow of synchronized low frequency photons between dipoles creates mutual force of attraction, i.e. gravity. The study also displays that these photons consist of a positive elementary charge loosely coupled to a negative elementary charge. The photon propagates with the speed of light and simultaneously the charges rotate with a rotational speed equal to the photon’s frequency. This implies that many components of our galaxy can be described by the laws of electromagnetism. These laws describe electromagnetic fields and forces created by configuration of charges (dipoles and photons), their position, motion and acceleration. The study describes a model, based on the laws of electromagnetism, where the big bang, dark energy, dark matter, expanding space, black hole, gravitational lensing and redshift is explained.