One way is to Detonate thousands of hydrogen bomb in low orbit causing the ozone layer to implode and exposing the Earth or an other planets with some sort of atmosphere to massive amounts of radiation and heat causeing a most the worlds volcanos to Explode and there for heat the curst to the point of Melting into the planets core.
i think that in 2090 we will have colony on both Mars and the moon. and countries are tying to gain territory in on both planets human have begun interplanetary travel in the solar system. also earth has 9 billion living on it and heilium-3 is being mined all over the place. also the FTL drive being developed for intersteller travel.
OK here is the challenge you have to land on all the moons in one laneJch and flight, the last planet to land on should be the ocean moon and the caft has to be stock parts only. and have to have pictures the prove you did it. and post them here