Preview: https://youtu.be/3X6MATVe6Is

Space Creator Pro (a bundle with more space elements): https://www.unrealengine.com/marketplace/en-US/product/space-creator-pro

The Space Creator is a collection of Blueprints and Materials that allow to quickly realize space scenes with film quality assets for planets, stars, and skyboxes.

Each object in the scene is completely controllable by the parameters panel like any basic object provided by the Engine: this allows you to shape the surface of planets, assemble the cloud layers of gas giants, fill worlds with ice or lava and create stars in minutes, all working only inside the scene.

So whether you are a film maker, a game developer, or an environment artist this asset pack may be helpful to immensely shrink down times in your creative process, offering an efficient interface and high quality assets.