Well i just watched episode 5 of space with sam neil, good series. and they had a ring that protruded from the earth with a hot side and a cold side-earth was in the middle indicating the ideal/safe distance from the sun. Not in my lifetime will the sun come dangerously close to earth, but it will happen. So my question is, rather than fly humanity out to some place like mars (which no doubt we will have conquered by then anyway), why not detonate some extremely electromagnetic weapon above one of poles of earth. The charge of the burst would be say positive, so you detonate it above the positive pole of earth. If it was an unimaginably powerful burst, could the planet be moved from its orbit?