The chances of retrieval of viable microorganisms deposited on the moon by unmanned lunar probes
Terrestrial microorganisms deposited on moon by unmanned lunar probes
Tierney, M. S.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Effect of mission mode and orbit eccentricity on unmanned outer planet capture missions
Mission mode and orbit eccentricity effects on unmanned outer planet capture missions
Norman, S. M.↗
Unmanned spacecraft guidance and control
Unmanned spacecraft guidance and control technology for lunar and planetary exploration
Scull, J. R.↗
Research on strapdown guidance-and-control systems for advanced unmanned launch vehicles
Strapdown and gimbaled guidance and control systems for advanced unmanned spacecraft and launch vehicles
Duncan, R. C.↗
Comparison of small water-graphite nuclear rocket stages with chemical upper stages for unmanned missions
Small water-graphite nuclear rocket stages compared with chemical upper stages for use in unmanned spacecraft
Clark, M. R.↗
Multipurpose entry vehicle requirements for unmanned landings on bodies having tenuous atmospheres.
Multipurpose entry vehicle requirements for unmanned landings on bodies in solar system having tenuous atmospheres
Harrison, E. F.↗
Overview of the role of unmanned earth satellites in the exploitation of space.
Unmanned earth satellites role in space exploitation
Castruccio, P. A.↗
Deorbit maneuver and targeting strategy for unmanned Mars landers.
Deorbit maneuver strategies for unmanned Mars soft landers, considering propulsive efficiency, targeting capability, communication link geometry and sensitivity to system uncertainties
Marquet, D.↗
Evaluation of aerodynamic and propulsive terminal phase systems for an unmanned Mars soft lander.
Aerodynamic and propulsive terminal phase systems for unmanned Mars soft lander compared on basis of weight and capability for handling uncertainty
French, C.↗
Effect of mission mode and orbit eccentricity on unmanned outer planet capture missions.
Direct flight and Jupiter swingby heliocentric trajectory modes of elliptic capture orbits compared for unmanned missions to outer planets
Norman, S. M.↗
Solar-electric-propulsion systems for unmanned space missions.
Electric propulsion ion engine systems using solar power source for Mars and Jupiter exploratory unmanned spacecraft is adaptable to existing launch vehicles
Molitor, J. H.↗
Multiprocessing techniques for unmanned multifunctional satellites Final report,
Simulation of on-board multiprocessor for long lived unmanned space satellite control
Dantonio, R. A.↗
Analytical evaluation of space storable propellants for unmanned Jupiter and Saturn orbiter missions
Analytical evaluation of space storable propellants for unmanned Jupiter and Saturn orbiter missions
Oglebay, J. C.↗
A path-finding algorithm for an unmanned roving vehicle
Pathfinding algorithm for unmanned roving vehicle to explore Martian surface
Kirk, D. E.↗
Propellant selection for unmanned spacecraft propulsion systems. Volume 2 - Analysis of propellant sensitivity, secondary propulsion, and ground operations, phase 2 Final report
Analysis of propellant sensitivity, secondary propulsion, and ground operations for unmanned spacecraft propulsion systems
Source record↗
Propellant selection for unmanned spacecraft propulsion systems. Volume 3 - Study of propulsion stage commonality and attitude control systems requirements, phase 2 Final report
Feasibility of common stage for alternate space missions and attitude control systems for unmanned spacecraft propulsion system
Source record↗
Direct entry longitudinal range dispersion of unmanned Mars landers.
Longitudinal range dispersion of unmanned Mars landers using VM-8 and VM-9 atmospheric models, discussing Syrtis Major as possible landing site
Brian, E.↗
Evaluation of entry and terminal deceleration systems for unmanned Martian landers.
Entry and terminal deceleration systems for unmanned Martian landers, discussing parachute landing and lifting entry vehicles
Harrison, E. F.↗