How is living on Mars significantly harsher than the ISS?<p>You would get resupply missions once every 2 years [0] instead of 10 times a year, but in general they share most of the downsides but Mars has soil, gravity and an atmosphere.<p>[0] <a href="http:&#x2F;&#x2F;clowder.net&#x2F;hop&#x2F;railroad&#x2F;EMa.htm" rel="nofollow">http:&#x2F;&#x2F;clowder.net&#x2F;hop&#x2F;railroad&#x2F;EMa.htm</a>