Origins of the universe
What accounts of the origins of the universe are given by science?
In the distant past most people accepted their religion's explanation of how the universe began. As the world became more interested in science in the 18th and 19th centuries, however, religion alone couldn't always explain the new discoveries being made. In the 1920s the The scientific theory that describes the early development of the Universe. theory was proposed as a possible scientific explanation for the creation of the universe.
It was first proposed in 1922 by Alexander Friedmann, a Russian mathematician, and expanded upon in 1927 by Georges-Henri Lema卯tre. He was a Belgian physicist, who was also a The Catholic Church is a community of baptised believers in Christ that is led by the Pope. The Catholic Church teaches that the Pope has special authority that descends from Jesus himself. priest. Scientists such as Edwin Hubble have made detailed observations and measurements that support and develop this theory.
Put simply, around 14 billion years ago, all matter and energy in the universe was at a point of infinite density and temperature. It then expanded rapidly, and eventually stars, galaxies and planets formed. This expansion was the beginning of time and continues to this day. The Big-Bang theory is supported by evidence that space is expanding, including the redshift of light from distant galaxies and the existence of cosmic background radiation in all directions.
It is thought the Earth was formed around 4.6 billion years ago from dust and gas left after the Sun formed.
As the Earth gradually cooled, creating conditions in which life was possible, living things appeared on the new planet Earth.
Not all scientists agree with the Big-Bang theory, but many of their objections are to do with the details within the process, not the underlying principle that it happened. Similarly, there are different A starting point for investigation. An idea or explanation to be tested. about how life began on Earth. These can be tested, but scientists cannot be sure which are correct because it happened long ago.
Stephen Hawking
Stephen Hawking was a world-famous physicist and cosmologist. In the 1960s, he discovered that although the universe looks like it is static, it is in reality constantly expanding. His theory is based on the fact that this rapidly expanding universe is the result of one single, initial event known as the Big Bang.