[ExI] Packing for Mars

Adrian Tymes atymes at gmail.com
Fri Apr 9 19:03:11 UTC 2021


On Fri, Apr 9, 2021 at 9:55 AM spike jones via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> Billw, regarding the Packing for Mars book, is it about standard astronaut
> training or is it specifically about training for Mars?  This is a critical
> difference, because the weight calculations are still telling us that any
> trip to the Mars surface with humans is one-way.  We have no
> currently-known technology for getting back up to Mars orbit from the
> surface.
>

We know quite well how to get back up.  It just hasn't been done yet, as it
would be expensive to do so, and we haven't yet had anything we deemed
worth the expense.
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