Recommendation on creating Space Vistas

Development Asset Creation
1

Hey
I was working on a Space Game and encounter issue.

What software (both 2D and 3D) tools do you recommend to create assets for similar scenes:

http://anywalls.com/pic/201305/1920x1080/anywalls.com-66008.jpg

*And more complex incl 3D models *

In terms of assets, that Unreal engine 4 is good working with.
I could not found any useful information on this topic.

Especially I am interested Space Vistas, Nebulas, Galaxy-rendering, among others.

Thanks in advance for the help

2

There’s plenty of photoshop tutorials for space, nebulas, and similar effects.