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Use of Extraterrestrial Resources for Human Space Missions to Moon or Mars (Paperback, 2013 ed.)
Loot Price: R4,141
Discovery Miles 41 410
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Use of Extraterrestrial Resources for Human Space Missions to Moon or Mars (Paperback, 2013 ed.)
Series: Astronautical Engineering
Expected to ship within 10 - 15 working days
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This book carries out approximate estimates of the costs of
implementing ISRU on the Moon and Mars. It is found that no ISRU
process on the Moon has much merit. ISRU on Mars can save a great
deal of mass, but there is a significant cost in prospecting for
resources and validating ISRU concepts. Mars ISRU might have merit,
but not enough data are available to be certain. In addition, this
book provides a detailed review of various ISRU technologies. This
includes three approaches for Mars ISRU based on processing only
the atmosphere: solid oxide electrolysis, reverse water gas shift
reaction (RWGS), and absorbing water vapor directly from the
atmosphere. It is not clear that any of these technologies are
viable although the RWGS seems to have the best chance. An approach
for combining hydrogen with the atmospheric resource is chemically
very viable, but hydrogen is needed on Mars. This can be approached
by bringing hydrogen from Earth or obtaining water from
near-surface water deposits in the soil. Bringing hydrogen from
Earth is problematic, so mining the regolith to obtain water seems
to be the only way to go. This will require a sizable campaign to
locate and validate useable water resources. Technologies for lunar
ISRU are also reviewed, even though none of them provide
significant benefits to near-term lunar missions. These include
oxygen from lunar regolith, solar wind volatiles from regolith, and
extraction of polar ice from permanently shaded craters.
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