When it comes to deep space travel, the problem of solar radiations arises, or more precisely how to shield the astronauts from it.
I know that we are protected by the magnetic field of the Earth, but what's the main issue in using the same principles in space?
Couldn't we generate a magnetic field around a spaceship? Would it be too heavy? Or would it need too much power?
I'm sure the answer is pretty obvious to physicists because I never even heard of this possibility.
Thanks in advance.