They're planning to settle humans on Mars and even talking about terraforming. What an idiotic idea! Earth has a magnetic field to prevent the atmosphere from being stripped away by solar winds. Mars still has a minimal atmosphere that is still being stripped away. Without a rotating core to generate magnetic fields, terraforming Mars is merely something scientists want to use tax money for and try just to find out why it cannot be done. I've got a better idea, install a rotating core !!! which also cannot be done. D U H !