NASA - Advanced Life Support
- Examples of advance life support research at NASA Ames.
- http://www.nasa.gov/centers/ames/research/technology-onepagers/advanced-life-support.html

Biosphere 2 Center
- Columbia University environmental research activities and education programs in the Arizona "living laboratory" originally built for an experiment to test the feasibility of humans living in a closed ecosystem.
- http://www.bio2.com/

NC-State NSCORT
- Gravitational biology, and links to other sites working under NASA's biology-related centers for research and training, including research on CELSS.
- http://www.cals.ncsu.edu/nscort/

International Space Exploration & Colonization Co
- A non-profit organization developing technologies for colonizing space, including a biosphere-style closed ecological life support system (CELSS).
- http://isecco.org/

USU Crop Physiology Lab
- Studies of crop production on the lunar surface; surviving the long lunar night.
- http://www.usu.edu/cpl/research_failure.htm