If resources are limited, then we have to work with what we have, especially in the harsh conditions of outer space. Of course, cargo ships with supplies are regularly sent to the ISS, but for long missions, self-sufficiency is important. Therefore, it is necessary to recycle and reuse precious resources, including oxygen.
Fresh air
Now scientists are actively studying how photosynthesis (the process of transformation of the body of light into energy with a by-product in the form of oxygen) is carried out in space. For this, Arthrospira (Spirulina) microalgae was taken and immersed in a photobioreactor (a cylinder filled with light). At the station, carbon dioxide through photosynthesis will be converted into oxygen and edible biomass (proteins).
We know how this happens in terrestrial conditions, but it is important to test the process in space. The experiment is going to be carried out during the month when the amount of oxygen from the algae changes sufficiently.
After returning to Earth, microalgae will be analyzed in April 2018. Genetic information will provide a clearer picture of the effects of weightlessness and radiation on the plant cell. It is known that Arthrospira is endowed with high resistance to radiation, but you need to check its maximum ability.
Biophotoreactor equipment with spirulina located inside. It will function for 30 days.
The project is part of the Melissa (Alternative Life Support) program. She is responsible for many research and educational activities, such as the project AstroPlant - collects information about the growth of plants in different parts of the Earth.
This is followed by the Uriniss urine recycling project to create nitrogen gas, energy, potential nutrients for vegetation and water.
The AstroPlant project debuted at the Border Sessions festival (Netherlands) last week. It allows people to collect data on potential crops for cultivation in space.
