Films like "Solar Crisis"
and "Star Trek: Generations"
show humans blowing up or extinguishing the Sun or a star, usually by firing a rocket into them to alter, increase or dampen the (supposed?) nuclear reactions going on inside them.
With our present technology, is there any way we could influence the output, any parameter or even existence of the Sun.
And assuming a leap in future technology, is there any way theoretically posssible to alter anything, even something small and fleeting? (cf the claim that the impact of the Pt in a tiny probe could have ignited Jupiter in 2003).