This specific cover is often cited by fans on Reddit as the definitive long-form version of the theme.

Unlike the 1-minute TV intro, this version uses high-end virtual instruments (East West VST) and Cubase 8.5 to create a fuller, cinematic soundscape.

"The Expanse - Extended Theme (Epic Orchestral)". Original Composer: Clinton Shorter. Duration: Approximately 6 minutes and 22 seconds.