Hi there,
i tryed to make a space nebula and played around with noise.
Now i get some good results (for now) but i have some incredible cracked edges beside some good faded out edges.
Full view:
Zoomed:
The blue edges on the top or left started hard and got smoothened to transparency.
But the red edges at the bottom are extremely hard cracked.
I tested the 
but nothing happend. Or i doing it wrong.
The material:
Anyone have a good idea for that?
Have a great day.
Kronod