I made a list of the ideas posted on this tipic:
- Possibility of change the axis of a planet/star
- Formation of a solar system starting from a nebula
- Stars/planets evolution (star born, star death, planet formation...)
- Exploding planets after huge impacts (possibly with a 'fluid' simulation)
- Solar system editor
- Realistic spacecraft with engines and controls
- Hill sphere on all bodies at the same time
- More preset bodies and stars types