A friend of mine is writing a Sci Fi tale set a few centuries in the future. While there will be futuristic technologies to make the plot go, she said she wants to try to make it realistic at least to the point where she inst violating the laws of physics. The part she asked me about involved Terrorists trying to set off a nuclear device in the upper atmosphere of Jupiter. Her rational is that since the planet is mostly hydrogen, the explosion would set off a chain reaction that would ignite the planet. I honestly don't know if its possible or not so I wanted to put it on the table here and see what everyone thought. Thank you.