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Learn about the evolution of a star and how stars are created and grow with this Stellar Evolution video from KLT!

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Lyrics:
This is stellar evolution
of a star in the Universe
A nebula is the beginning
of a star before its birth

The names of stars you will meet
Are some different basic steps
in the evolution of a star
and all these are fundamental changes

I am a molecular cloud
I'm a nebula guy
I have high density
and a very low temperature
This combination creates the gas
molecular hydrogen
This is mainly what I'm made of
with cosmic dust inside
When the force of gravity
exceeds the outward thrust of the gas
The pressure is so great that I
I can't help it and I'm starting to fall apart
Which is caused by a shock wave from a star about to explode.
Or when two molecular clouds collide
isn't it weird now
When gravity is too strong
I break into smaller clouds
Every cloud is a star beginning
of which I am very proud
Protostars are the name
of all the clouds that are released
Let me introduce you to a Protostar
It was a part of me

Hello, I am the beginning
of all kinds of stars
Let me introduce myself
I am a Protostar
My heart is not warm enough
for the merger to occur
To reach this level of fame
this process is a chore
The first thing I do when
I free myself from my molecular cloud
I start to spin until I form this disc
around me, you see now
While the record is spinning, I produce
a strong magnetic field
Vacuum gas and dust
my central core as I reveal it
Infallible gas releases
kinetic energy
Create heat increasing temperature
in the center of me
At this point I can transform
into a star burning hydrogen
This is when nuclear fusion begins.
In a Protostar
That's when I cross
at stage 3 called T Tauri
We play our different roles
In star formation, see

This is stellar evolution
of a star in the Universe
A nebula is the beginning
of a star before its birth

The names of stars you will meet
Are some different basic steps
in the evolution of a star
and all these are fundamental changes

I'm a T Tauri star now
Also a pre-main sequence star
My job is to clean
Dust and gas and I send them far away
My stellar winds create bipolar flows
it reduces my mass
Until I'm a main sequence star
My center burning nuclear gas

I'm a main sequence star now
just like the sun, you know
for billions of years I will burn
throughout my light show
Conversion of hydrogen to helium
This is how fusion exists
He wants to blow me up
But it's hard to do that
Due to equal gravity
power pushes me
I'm able to stay burning
Since the merger started
There are many kinds of stars
throughout the universe
Go discover them all
Now you know how they are born

This is stellar evolution
of a star in the Universe
A nebula is the beginning
of a star before its birth

The names of stars you will meet
Are some different basic steps
in the evolution of a star
and all these are fundamental changes

This is stellar evolution
of a star in the Universe
A nebula is the beginning
of a star before its birth

The names of stars you will meet
Are some different basic steps
in the evolution of a star
and all these are fundamental changes

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