Lost interview of George Lemaitre rediscovered

Subject: Physical geography

Theory of Origin of universe

Context:

In February 1964, a broadcaster in Belgium aired an interview with a Catholic priest named Georges Lemaître (1894-1966). The footage was subsequently thought lost after it went missing from the broadcaster’s archives.

Who was George Lemaitre?

Lemaître was the originator of the Big Bang theory of the universe’s origin and derived an important law that cosmologists still use to understand the motion of galaxies away from each other.
The Big Bang theory (BBT) replaced steady-state theory (SST), under which Fred Hoyle and others claimed that the universe was static and that the galaxies that were there had always just been there.

What is Big Bang Theory?

Big Bang Theory is about the origin of the Universe.
It suggests that about 1370 crore (13.7 billion) years ago, all matter and energy in the universe was concentrated in an area smaller than an atom. At this instant, matter, energy, space and time were not existent. Then suddenly with a bang, the Universe began to expand at an incredible rate and matter, energy, space and time came into being.
As the Universe expanded, matter began to coalesce into gas clouds and stars and planets.
Some scientists believe that this expansion is finite and will one day cease.
After this point in time, the Universe will begin to collapse until a Big Crunch occurs.

Why Steady State Theory is being replaced by the Big Bnag Theory?

Hoyle (Originator of SST) had difficulty explaining the presence of hydrogen in the early universe.
Hydrogen was required to form the first stars and galaxies and had to come from somewhere, but the steady state theory couldn’t say where.