Thanks for the comments guys. Regarding the white balance i used a wild film response to give everything that retro blue look. I never as a rule do any post processing or adjustments to a render so thats a no no π Mike, yes space would be more ideal but lighting is tricky as a black hdr image isn't very useful i suppose i could have used a small distant sun or a nearby emitting jupiter. But here Discovery has returned to earth orbit it's been lost since the 2010 film π