Today, I will explain "Big Bang Theory"
 
And discuss
how this universe began
What was the starting point?
This is the first episode of the series
Discover the Universe
on Discover Earth TV
So today, we will start with the
discussion of the universe at the very first moment.
You will have to wait for our second series to find out the circumstances before the Big Bang
and what the universe was before the Big Bang.
What was before time and space?
 
 
 
 
 
 
 
 
The questions that have always been swayed in the human mind
are the discovery of the top-secrets of the universe,
some of which have been uncovered
and many are still being explored.
The Big Bang is an English language word
meaning 'big explosion'
The Big Bang is actually the explosion
from which this universe came into being.
According to this theory, before the universe came into existence,
all matter was imprisoned in a very hollow space,
equivalent to thousandths of a needle.
If the matter has too much energy,
more than any other source of energy in the world,
gravity becomes
the force pushing things away from one another.
 
So according to science, that was the beginning of the Big Bang point
When all substances began to detach from one another
 
after an explosion and spread into space.
At this time, the universe began to expand rapidly
because of its speed
Today it has been 13.8 billion years since the Big Bang.
 
Most of you will wonder,
how can anyone tell the age of the universe?
What scale does man have to measure the age of this vast universe?
So the answer is given to us by the "Hubble Space Telescope."
The oldest galaxy we find in photos taken
with the help of this telescope
is located 13.4 billion light-years away from Earth.
You may be wondering what the light year is?
'Light years' is not actually a time scale,
but is a measure of distance
and a light year is about 10 trillion kilometers.
This distance light sets in one year.
Now you can guess for yourself
that where one light year is equal to 10 trillion kilometers
hen how many kilometers would be
13.8 billion light years.
If we can measure how many years it takes
or light to come from a distant star or galaxy,
we can detect such galaxies
from ancient to old.
The oldest galaxy we've ever seen
That's 13.4 billion light-years away,
So we can say
That the age of the universe
revolves around it
Lets go back to the situation
After the universe came into being
13.8 billion years ago it was neither the sun,
nor the stars,
nor the galaxy,
In fact, there were clouds of large hydrogen gas
created just as a result of the explosion.
The clouds in the space in which
the hydrogen and helium content was high,
he gases began to shrink and shrinks
to form very hot bodies,
which we call "stars."
In addition to those stars
where the amount of gases was low,
gases also shrunk and became hot objects
that were smaller than stars.
And because of the greater attraction of a star nearest to itself,
they began to rotate around it.
We call these objects 'planets'
Many of the stars were shaped by the attraction of each other
and thus galaxies came into being.
The galaxy in which our sun and earth lie
is called the "Milky Way".
It is named after the Malikiway
because many of its stars look white.
Because of this, it appears as if there is a "milk stream or path".
The translation of "Milky Way" in Urdu is "Dudhia rasta."
So in today's video, we know
how our universe began
and how it is spreading and spreading.
let's stick to our channel
We will discover all the secrets of this universe.
