President's Commission on Moon, Mars and Beyond Forum: SSI-List
Thread: President's Commission on Moon, Mars and Beyond
# 19357 byGARY ANSORGE on Feb. 20, 2004, 2:14 p.m.
Member since 2022-08-22
> Do a web search on "Buzz Aldrin cycler Mars".
>
> Regards,
>
> Mike Combs
>
> Mike, just wondering if you know at what altitude a
hydrogen balloon would be "safe, i.e., where there is
insufficient O2 to support H2 combustion?
Garyseven1@...