This is a bit of a weird thing. well very weird im talking about setting jupiter on fire.
If you look at radio images of jupiter its quite plain to see that it emits EM in infrared, this is cause of the friction of it constantly trying to contract. If jupiter had a 92% atmosphere of hydrogen instead of 90% it would have started fusion and we would be living in a binary star system.
I just had the idea when reading an astronomy book but the increase in jupiters mass (in hydrogen) would cause it to start fusion and become a star.
Sun Earth - 93 million miles
Sun Mars - 129 million miles
Sun Jupitar - 458 million miles
Earth Mars - 36 million miles
Earth Jupiter - 365 million miles
Mars Jupiter - 329 million miles
These are the rough distances between the heavenly bodys. Jupiters moons would be destroyed or just melted which isn't too much of a loss when you think about setting a planet on fire But the better point is it'd increase the solar systems luminosity. Mars would get a heat bonus but my idea for a more useful jupiter would be solar power, or using it as a star base, you drag asteroids from the belt inbetween mars and jupiter, position them a safe distance away and put them in orbit. Each one could be used as a colony and giant hydroponic stations could be used to grow food to feed the colonys and solar cells to power them.
I know its a far out idea but im thinking hundreds of years in the future when we have better space flight technology. Just wish i was alive to see the day they turn jupiter into a hypermassive firework.
Another crazy idea brought to you by EMP corp