Question

What are the differences between the steady-state model of the universe and the Big Bang model of the universe?

Answer 1

The currently held view is that the Big Bang resulted in an inflationary Universe as opposed to the static model suggested by the Steady State theory.

Explanation:

The Big Bang means that the Universe evolved from a singularity and the Universe is inflationary, it being finite and unbounded, Einstein had originally postulated the need for a cosmological constant as the Steady state theory was the widely held view and it was believed that the Universe was constant in size. This approach has been discarded and Doppler red shift of spectral lines indicate that the Universe is expanding.