In episode 8 of the GEMMA podcast, GEMMA intern Odysseus Quarles introduces Brian Day’s Journey Through the Universe talk on the past, present, and future of NASA’s Moon and Mars exploration programs. Brian Day is the Lead for Citizen Science and Community Development at NASA’s Solar System Exploration Research Virtual Institute (SSERVI). His talk, presented as part of Gemini Observatory’s Journey Through the Universe program, covers the history of NASA’s Lunar and Martian exploration programs, and the challenges and discoveries that await us in the next wave of human exploration in our solar system.