Our universe is almost 14 billions years old and it stretches billions and billions of galaxies across that's why astronomers prefer the term 'observable universe' because the observable universe consists of the galaxies and other matter that can, in principle, be observed from Earth in the present day as light (or other signals) from those objects has had time to reach the Earth since the beginning of the cosmological expansion.
The observable universe is so vast that millions of stars are born and millions of others die everyday, yet our sun has been there for about 5 billion years. The universe created us along with some of the most mysterious objects like black-holes, which defy the laws of physics as we know it. Our understanding of the universe is still incomplete. But there are some things, we have been able to uncover.
Like where did the Universe came from and what is the big bang?
The observable universe is so vast that millions of stars are born and millions of others die everyday, yet our sun has been there for about 5 billion years. The universe created us along with some of the most mysterious objects like black-holes, which defy the laws of physics as we know it. Our understanding of the universe is still incomplete. But there are some things, we have been able to uncover.
Like where did the Universe came from and what is the big bang?