I quite enjoyed this! Pixel art and low-fi are a good mix of art and music for a sci-fi incremental game like this - definitely very relaxing. While the gameplay isn't similar, this gives me the same sort of vibe as Cell to Singularity (if you get what I mean? It's entirely down to vibes...). If I were to build upon this, perhaps adding the ability to reset the wormhole with a permanent buff (a prestige so to speak) that could also unlock new planets?
This next recommendation is a big strange. There was this game on Windows Phone (yes, those old Nokia windows phones) that was sort of similar to this. You had a planet that orbited around a sun (as opposed to a black hole), but the goal was to nurture life on these planets. I think it'd be cool to add some sort of side objective (or even just a visual flare) that stabilised terran planets eventually harbour life and can go through the different eras of civilisation that we humans have had.
Overall a really great game though!