title: Regenerative life support systems--why do we need them?
abstract: Human exploration of the solar system will include missions lasting years at a time. Such missions mandate extensive regeneration of life support consumables with efficient utilization of local planetary resources. As mission durations extend beyond one or two years, regenerable human life support systems which supply food and recycle air, water, and wastes become feasible; resupply of large volumes and masses of food, water, and atmospheric gases become unrealistic. Additionally, reduced dependency on resupply or self sufficiency can be an added benefit to human crews in hostile environments far from the security of Earth. Comparisons of resupply and regeneration will be discussed along with possible scenarios for developing and implementing human life support systems on the Moon and Mars.
authors.affiliation: Lyndon B. Johnson Space Center, National Aeronautics and Space Administration, Houston, TX 77058, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: Barta
authors.forename: D L
authors.initials: DL
authors.lastname: Henninger
mesh_terms: D000389:Air Conditioning / Q000379:methods; D003247:Conservation of Natural Resources; D018504:Ecological Systems, Closed; D005160:Facility Design and Construction; D006801:Humans; D008021:Life Support Systems / Q000191:economics / Q000295:instrumentation*; D018535:Mars; D016081:Moon; D013026:Space Flight / Q000191:economics* / Q000295:instrumentation; D018531:Spacecraft / Q000295:instrumentation; D018505:Waste Management / Q000379:methods