Combine all that into one article please

Can a giant space magnet pull interesting meteorites close and shove Earth-killers away? That was the starting question. The short answer is: not as a distant “Magneto station.” The longer answer is a real toolkit—magnets that only work up close, kinetic impactors that have already flown, a European probe about to weigh the wreckage, and nuclear options kept on the shelf for the worst cases. This article puts those pieces together. -- Why a giant electromagnet in orbit is not a tractor bea…