Seismo Lab Seminar

InSight operated on Mars from 2018-2022, and was remarkably successful in answering key questions about the interior of Mars. We now have much better understanding of the geometry of Mars' interior, including constraining the thickness of the crust and showing Mars has a large liquid core likely quite rich in light elements. We know Mars has active seismicity, particularly in the geologically young volcanic region of Cerberus Fossae, and we've seen evidence of impacts both large and small. However, many mysteries remain both about the InSight data and the interior of Mars. For the interior, many questions resolve around the deep interior. Does the seismic data suggest or require a basal magma layer just above the core-mantle boundary? A recent pre-print even suggests Mars may have a solid inner core. Are these interpretations mutually exclusive? For the data itself, many questions remain about the nature of the high-frequency events observed in the mars quake catalog, and about the nature of a mysterious resonance at 2.4 Hz present across the duration of the mission.