The Growing Beyond Earth Challenge (GBE): https://www.fairchildgarden.org/Science-Conservation-/Growing-Beyond-EarthNasa-and-Fairchild 

Designed to expand food options and increase plant diversity for spaceflight by evaluating multiple edible plants that meet NASA’s criteria for size and edibility. Using equipment that mimics the environmental conditions aboard the International Space Station, students are testing factors that may influence plant growth, flavor, and nutrition.