3D nebula rendered in Blender using E-Cycles. I did some moderate post-processing for the still image, such as adding more stars and adding some spot details to cover up some low quality areas and areas with a weird banding pattern.
Edit: redid the video at 30 fps and smoothed things out more.
Thanks to Kai Engel for the music. Check out his music at https://freemusicarchive.org/music/Kai_Engel