Today was our first full day on Mars. We started with very limited power thanks to the system failures detailed by Shannon previously. We also had some lectures from Rick on various space medicine topics, including ultrasound in space flight, winter survival, water survival, and the role of the flight surgeon. We also conducted an EVA and simulated a medical contingency while descending rocky scree. Finally, we had a lecture from Sean Serell, our rocketry specialist, who is directing the launching of our rocket tomorrow. The crew is tired in a good way, and very excited for tomorrow!