This is the introduction to the movie Tree of Life. I haven't even seen the movie (I probably should!), but this clip has some really beautiful images of space. I use a lot of photographs of outer space as references for my paintings, but I like to see video as well because it shows a three-dimensionality that photos cannot.
Apparently, no CGI/other special effects were used to film this scene, but it was done by mixing liquids together and using lighting tricks, which is even more impressive. Enjoy!