NASA astronauts Terry Virts and Scott Kelly spent the day replacing components inside one of the station’s Carbon Dioxide Removal Assemblies (CDRA.) The CDRA system works to remove carbon dioxide from the cabin air, allowing for an environmentally safe crew cabin.
ESA astronaut Samantha Cristoforetti continued two experiments that are investigating how the body changes while in microgravity. The Triplelux-A experiment aims to gain a better understanding of immune suppression in spaceflight while the Osteo-4 study which is analyzing the effects of microgravity on the most common cell found in human bones. The results derived from this study could also have implications for patients on Earth in the treatment of bone disorders related to disuse or immobilization, as well as metabolic diseases such as osteoporosis.
Cristoforetti also joined Russian cosmonaut Anton Shkaplerov in a Soyuz descent training exercise as they prepare to return to Earth next week along with Virts.