As an undergrad student, I helped conduct a paste-diet study for NASA. The ideas was that rats who would be aboard the space shuttle would eat a combined meal o

As an undergrad student, I helped conduct a paste-diet study for NASA. The ideas was that rats who would be aboard the space shuttle would eat a combined meal of rat food mixed with water, thereby solving the problem of little bits of food floating around space compartments. I have assumed since that time that there would be continued experiments regarding animals in space, including the ISS, but I have never followed up on this.