We all know Universe began 13.8 Billion years ago But how do we know it's actually true? We have 2 methods to find the Universe's age.
First Method: By studying the oldest objects. Universe can't be younger than the objects inside it. By determining the age of the oldest stars scientists are able to put a limit on Universe's age. Astronomers have found Old clusters of stars that are between 11 to 14 billion years old. There is a large uncertainty in this method but we know Universe is more than 11 billion years old.
Second Method: Expansion of the Universe. The Universe we live in is constantly expanding and also accelerating with the expansion. So, by measuring the rate of expansion scientists can work backwards to determine the age just like the police, solving a crime mystery. There are various key players in this mystery such as matter, dark matter to dark energy. By studying their role in the expansion and the current rate of expansion of the Universe. Scientists have found the age to be 13.787 ±0.020 billion years.
Something Strange is Killing Our Galaxies
Watch Here👉 [ Ссылка ]
Subscribe👉 [ Ссылка ]
Get a copy of my latest book Baby Universe for free: [ Ссылка ]
Second Channel👉 [ Ссылка ]
Instagram: [ Ссылка ]
Facebook: [ Ссылка ]
Twitter: [ Ссылка ]
