In reply to mix...@bigpond.com's message of Fri, 17 Nov 2017 13:22:18 +1100:
Oops make that "cosmic rays" (though I grant that the original version is
>In reply to Adrian Ashfield's message of Thu, 16 Nov 2017 21:03:58 -0500:
>BTW settlements on Mars would suffer the same problem as those on the Moon, too
>little atmosphere to provide reasonable protection against meteors and comic
>rays. Any settlement would have to be underground.
>Robin van Spaandonk
Robin van Spaandonk