Life Support Concepts
for Space Travel III

 Raymond M. Wheeler
Biological Sciences Branch
Kennedy Space Center, FL
What Will it Take to Grow Plants on Mars ?
Slide 3
Direct Solar Radiation Options
Crop Yield vs. Light
Slide 6
Slide 7
Slide 8
Slide 9
Slide 10
Slide 11
Slide 12
Slide 13
Slide 14
Can Plants be Grown at Low Pressure ?
Mars Deployable Greenhouse ?
Water Evaporation Rates vs. Pressure
Dissolved Oxygen vs. Pressure (pO2)
A Minimum Atmosphere for
Mars Greenhouses
Human Tending of Low Pressure Gardens
Psychological Contributions of Plants
Current Testing for Spaceflight
Spaceflight Chambers for Plant Tests
Slide 24
Targets for Plant-Related Life Support Applications
Role of Bioregenerative Components
for Future Missions
More Testing
 is Needed !
A Priestley Experiment on Mars ? !