How Stars are formed-Nebulae

Each star that we see in the sky is one of a kind...though they all are formed in the same way,

starting with clouds of dust and gas called as nebula.

So how big should a nebula be in order that a Huge Star is born out of it..?

Nebulas are billions of miles across and they drift through space forming various and spectacular shapes.

Each Nebula is a star nursery very many new stars are in the process of being born.

The gas and dust clouds around a nebula are so thick that the process of star formation are hidden to us.Even with the use of telescopes the birth of a star remains hidden within the nebula.

Until NASA launched the Spitzer Space Telescope.The Spitzer Space Telescope is an infrared telescope that means it only recognizes heat.The heat passes through the thick clouds of a nebula allowing Spitzer to witness the birth of a star.

All we need to make a star is hydrogen,gravity and lots of time for gravity to do its work.

What gravity does is it pulls the the dust and gas into a giant squirling vortex.

As gravity does its work more and more matter comes together and squeezing the matter drives the temperature up.As thousands of years pass the discs of the vortex starts getting thicker and at its center gravity crushes the gas into a super dense and super hot ball which forms the core of a star.At this stage the temperature at the core of a star is almost 15 million degree celsius and at this temperature molecules of gas begin to fuse around the young star and just like that a star is born.

The Creator of life it self is born in such a violent process.

See also:- Spitzer Space Telescope

Stars-the Real Creators of everthing that comprises our universe

Stars they are everywhere and they rule the universe...

They are born in violence and when they die, they fill the universe with stardust the building blocks of life..all life begins in the firey core of a star.

How many stars do you think are there in the universe..?

The ones you see at night are just the few hundreds of 100 billion stars that are in our galaxy and as a matter of fact there are more than 100 billion galaxies in the universe.

There are more stars than there are specs of sand on earth.

All these stars are very Far away from earth and there isnt much we know about them but there is one star which is really close to the earth our very own Sun its nothing but a star.

Our Sun is the ultimate source of energy and hence it dominates all life on earth.

Seen from the earth the Sun looks small but in actuality its Immense,we could fit a million earths inside the sun which is a million miles in diameter.

Yet our sun is nothing compared to the really big stars out there

Eta Carinae- over 5 million times larger than our sun.

Betelgeuse- 300 times larger than Eta Carinae.

And the biggest star ever discovered

VY Canis Majoris- A billion times Bigger than our sun.

Stars Burn in different colours red,yellow or blue.

Some are the sole dominators of their Solar System...Some are in pairs orbitting each other.

Coming together these stars Make up entire galaxies,huge cities of stars.