I am a big fan of Cliff Martinez' Solaris. It really captured the sound of the movie. And if that's your thing, you can listen also to the work Ben Frost & Daníel Bjarnason did by request of the old version of the movie, also called Sólaris. It's equally gorgeous, but captures a more cold approach to it. It's brilliant.
I also like Max Richter's scores for several movies. La Prima Linea and Disconnected come to mind now
John Murphy's Sunshine is also another score I am so in love with. You need to check it out! <3