Over the last four years, NASA’s InSight mission has enabled unprecedented investigations of Mars’ structure and dynamics. Its final year of operations saw a series of huge meteorite impacts detected both seismically and from orbit. In this talk, I will present some of my latest work studying both natural and artificial impact events; and explore how the lessons learned from InSight will be applied to future seismology missions to the icy moons of the outer Solar System in the 2030s and beyond.