Space News
space history and artifacts articles

space history discussion forums

worldwide astronaut appearances

selected space history documents

related space history websites

  collectSPACE: Messages
  Publications & Multimedia
  Use of Extraterrestrial Resources for Human Space Missions to Moon or Mars (Rapp)

Post New Topic  Post A Reply
profile | register | preferences | faq | search

next newest topic | next oldest topic
Author Topic:   Use of Extraterrestrial Resources for Human Space Missions to Moon or Mars (Rapp)

Posts: 4882
From: Geneva, Switzerland
Registered: May 2006

posted 07-19-2012 05:15 AM     Click Here to See the Profile for cspg   Click Here to Email cspg     Edit/Delete Message   Reply w/Quote
Use of Extraterrestrial Resources for Human Space Missions to Moon or Mars
by Donald Rapp
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.

  • Hardcover, 250 p. 100 illus., 60 in color
  • Springer, November 22, 2012
  • ISBN 978-3-642-32761-2
(ISRU = In Situ Ressource Utilization? Just my guess).


Posts: 704
From: Honolulu, HI, USA
Registered: Sep 2010

posted 07-19-2012 03:27 PM     Click Here to See the Profile for mode1charlie   Click Here to Email mode1charlie     Edit/Delete Message   Reply w/Quote
Yes, ISRU = In Situ Resource Utilization.

All times are CT (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | The Source for Space History & Artifacts

Copyright 1999-2015 All rights reserved.

Ultimate Bulletin Board 5.47a