Our sun is a giant ball of burning gasses.
It is really a star.
We are so used to seeing the sun during the day
and stars at night, that it is a hard thing to understand.
If you could travel really far out in space
and look back at our sun,
you would see that it is a star just like the stars we see at night.

 Without the sun there would be no life on earth.
We need the energy the sun produces in the form of heat and light.
It keeps us warm and helps plants grow.
Nuclear reactions on the sun create that heat and light
as they change hydrogen gas into helium.

Did you know that there are about 100 billion stars in our galaxy?
Did you know that there are about 100 billion galaxies?
Can you write that number? Here is what it looks like:

100,000,000,000
Copy that number here:

Our sun may be so very important to us on earth,
but it is really not a big deal in the whole universe.