How do people do galaxy print

[khalil1988]

I want to know the method or methods to do galaxy print it looks like its air brush but i want to know how

 

[jont]

Also interested in this, but I guess we gotta do our own research.

 

[supremexhaze]

look at a picture of a galaxy cluster.. and tip... start from the back, forward

 

[jjparkz]

sponges. also, getting the colors right is very important...

 

[lil black jean jacket]

yup, might just have to rip it from a photo copy