ABSTRACT

In this chapter, the authors attempt to build a cosmological model, aiming at explaining the fundamental cosmological observations, within Isaac Newton's theory of gravity. The first attempt to build a cosmological model within Newton's theory of gravity was proposed by Newton himself in the Principia and is referred to as Newton's static model. The Milne–McCrea model seems to be able to explain the cosmological expansion within a simple Newtonian description of gravity. The Milne–McCrea model seems to be a potential good candidate for a cosmological model based on Newtonian gravity. However, the Milne–McCrea model can be regarded as a preparatory, Newtonian analogy of A. Friedmann cosmological models based on general relativity. The authors conclude that a cosmological model consistent with all observations necessarily requires a description of gravity beyond Newton's theory.