New Mars Forums

Is it possible that we could insert a dense non-radiactive material into the core that would increase the planets gravitational pull to keep the oxygen in the atmosphere. Also, couldn't it be possible to find or drill a hole into the core of mars and from that point have a nuke with a hyper-dense shell that would stay intact until the inner core at which point it would explode and start the cores rotating to create a magnetosphere. I would like to know if either of these optiopns is viable to begin teraaformation.