Spirulina is the dried biomass of cyanobacteria that can be consumed by humans and animals. The three species are Arthrospira platensis, A. fusiformis, and A. maxima. Recent research has further moved all these species to Limnospira. From Wikipedia
Under the BioE3 policy, ISRO and DBT are collaborating with NASA to study microalgae and cyanobacteria in space for sustainable life-support systems.
