posted on Oct, 20 2009 @ 10:24 AM
reply to post by ModernAcademia
Since MARS has no appreciable atmosphere, there must be protections for astronauts from radiation.
On Earth, we are protected by out atmosphere and magnetic fields that deflect solar and outer space radiation.
Sure space craft would have protection, but think how small they are.
If they can seal a cave, they would have a MUCH larger living/working area.
This would aid both physical and mental health.
That does not even think about possible life forms/water that "MAY" be found.