I may be wrong, but I believe this goes back to a suggestion made decades ago by Carl Sagan. Despite being in the mission profile for a number of missions, it n

I may be wrong, but I believe this goes back to a suggestion made decades ago by Carl Sagan. Despite being in the mission profile for a number of missions, it never made it (and turned on) until now. https://www.planetary.org/sci-tech/mars-microphones https://www.planetary.org/sci-tech/mars-microphones