A Dying Star

I am a dying star
My heart is collapsing
And I am about to explode

My death will bring about the end of life
For I am the giver of life
And nothing will save my children now

But do not feel bad for me
My death will bring life as swiftly as it ends it
Countless civilisations created of my remains

Everything must eventually cease to exist
And I breathe my last breath
In a flash of light it all ends