But as a series-long approach a la Firefly or nuBSG, I'd rather they didn't.
I'll never understand why people say BSG had silent space scenes. The sound effects were muted, but they were there.
I much preferred Serenity's sound in space to Firefly's silence.
Not me. I loved FF's silent space scenes -- it made them feel
more real and vivid, not less. After all, when we see documentary footage on the news, something from a security camera or a drone, it's often silent. Even if we see something live from a distance, the sound from it might be delayed or too faint to make out. So a scene without sound effects resonates with real-life experience and feels more like watching something genuine, something natural and unstaged. Putting clear sounds on everything just makes it feel more produced, more artificial.
I absolutely loved the sound design in Alfonso Cuarón's
Gravity, its authentic use of silence, limiting the sounds to what the main character would've been able to hear. It was incredibly vivid and made things more dramatic, the sounds more impactful (often literally) when they did occur, because it wasn't just nonstop sonic wallpaper.
And it's not just in space movies that silence can be a powerful ingredient in sound design. Look at the iconic Langley break-in sequence in Brian DePalma's
Mission: Impossible, where Ethan Hunt broke into a vault with audio sensors, so he had to remain totally silent the whole time. Action movies usually drench us in blaring noise and driving music, so it was really powerful to have such a long sequence dependent on utter silence.
There shouldn't be added sound effects in space scenes, quite simply because there is no sound in a vacuum.
Artistic license doesn't cover it.
I've never thought of sound in space scenes as something that was literally meant to be audible within the story. I see it more like background music, an embellishment for the audience's benefit. Most movie/TV space scenes have to be taken figuratively anyway, since they're full of unrealistic aspects -- ships too brightly lit, too close together, and moving too slowly, explosive fireballs roiling with turbulence that wouldn't exist in vacuum, energy beams visible in vacuum with nothing to scatter their light, etc. That's why it's refreshing when a production takes a more naturalistic approach for a change.