For a book I'm writing, I plan to feature a cabal of conspirators harnessing a rare alignment of various planets in their star system in order to generate destructive force on their home planet. All the while, they disguise their efforts as legitimate scientific research similar to that of CERN in Geneva, Switzerland. My question is, would it be theoretically possible to harness the forces generated by planetary alignment? I recall that the interaction of magnetic fields from the various planets of our solar system has a large impact on Earth's environment, as does energy/radiation generated from deep space regions such as the galactic center. I'm still trying to construct a plausible (though fictionalized) method of harnessing this power to produce environmental devastation on selected regions of a planet. I was wondering if anyone could give me some ideas or direct me to relevant literature on the subject?