Excellent choices! Older but still great is Star Trek II by the late James Horner at the beginning of his career; Battle in the Mutara Nebula remains my favorite spaceship fight song.

Gattaca by M. Nyman is an absolute masterpiece of subtle and complex layering; I saw on a behind the scenes that songs from it were also frequently used as the stand-in music during the filming and editing of the TV show Firefly. The track The Other Side is my most replayed song of all time.

Ennio Morricone is best known for his westerns, but I think his best soundtrack is The Missionary, in which music plays a key part of the plot. Gabriel's Oboe is a favorite song to play for a great many musicians; I've heard it on everything from sax to cello and played it myself (poorly!) on flute.