How Stars Are Created?

All you need to make a star is hydrogen, gravity, and time.

Gravity pulls the dust and gas in a giant swirling vortex. Gravity brings matter together and when you bring matter together and you squeeze things into smaller spaces the necessarily heat up bay simple laws of chemistry. When we compress something, we drive the temperature up. 

Over a hundreds of thousands of years, the clouds gets thicker and forms giant spinning disk bigger than our entire solar system. At its center, gravity crushes the gas into a super dense, super hot ball. Pressure builds until huge jets of gas burst out from the center. It’s a very violent process. 

There jets are many light-years across something literally accelerating material very fast across unimaginable distances.

Gravity keeps the pressure on sucking in gas and dust particles that smash into each other generating more and more heat. Over next a million years the young star gets smaller and hotter temperature as its core reaches 15 million degree. Only at that mind boggling temperature can atoms of gas fuse together releasing massive amounts of energy. And just like that a star is born.