Steady State
The steady state theory was developed in 1949 by Fred Hoyle and others as an other theory to the Big Bang theory. According to the steady state theory, the universe is expanding, it doesn't change its look over time, because new matter is formed to keep the density level equal. Problems with the steady state theory began to show in the late 1960's, when evidence started to show that the universe was in fact changing. The final blow came with the discovery of the cosmic background radiation in 1965.
Today, the big bang theory is the one that most of the astronomers believe is an approximate and realistic creation theory.
Observational cosmologists deal with observations and because the universe and the speed of limit are both finite one can only observe data within a sphere centred on the observers. Theoretical cosmologists regard the big bang model as incomplete because it does not prove what happened before the big bang.
Today, the big bang theory is the one that most of the astronomers believe is an approximate and realistic creation theory.
Observational cosmologists deal with observations and because the universe and the speed of limit are both finite one can only observe data within a sphere centred on the observers. Theoretical cosmologists regard the big bang model as incomplete because it does not prove what happened before the big bang.