NASA is troubleshooting a glitch with the upper stage of Artemis 2's Space Launch System rocket that will likely delay the launch of the moon mission.
NASA and JPL are working hard to develop more autonomy for their Mars rovers. Both of their current rovers on Mars—MSL Curiosity and Perseverance—are partly autonomous, with Perseverance being a little more advanced. In fact, developing more autonomous navigation was an explicit part of Perseverance's mission.

