Among many possibilities, I thought of the possibility of how to convert jupiter to a star.
How is it possible to have a better solar system with jupiter providing us the ultimate conditions to be able to develop life on its moons? I thought perhaps one possibility would be to add iron to the core of the planet so that by extreme pressure at the core due to gravity and application of intense electric arcs in the core the planet can be ignited and converted to a low energy star. Iron seems to have the highest stable nucleus for resonance and it seems to be essential for release of enormous amount of energy shrinking to helium and fusion to occur in the stars. Obviously I don't mean to make everyone to think of this method but as a starting point I mentioned it so that new ideas and possibilities could crop up.