Is it possible to build a lander that could drill down several feet the surface to analyze buried ice deposits?

Will rovers or landers someday take with them nanobots to do studies and aide in repair if something goes wrong?

What use are these landers, now that we can make moveing robots, or are these no longer made, if it's so important to get info in one place for so long, why not program a rover to do so?

Suggestion for "the next time" we use this landing method. After releasing the rover, fly the descent stage platform to another location of interest (the top of Mt. Sharp?) and land it softly vs. crash it. It seems to be very capable of controlled flight within the atmosphere - and thanks to the team it seems very fuel efficient as well!! Seems a shame to just trash it. Put a 360 camera on it and some other instrumentation and make it it's own platform. GREAT JOB JPL!!

Do the landers have any seismic instruments to detect quakes and land movements?

Do any of the rovers or landers have the capability for time-lapse photography?