The Space Music Database.

[MC.STEEL]

Hello to the S.M.D. this is a repository of all awesome,calming,overview effect inducing,shivers down your spine creating space music that you can enjoy while EVA-ing a kerbal and looking at the vastness of space

First;

some XCOM soundtrack

and a mostly unheard of space rpg called space rangers 2.

post your music that you listen to while doing stuff like that.

Edited December 31, 2013 by MC.STEEL

[Ravenchant]

The music from Sunshine would certainly qualify:

[KASAGD]

below the asteroids - from the eve jukebox