An artist illustration of the InSight lander on Mars, with its dome-shaped seismometer on the ground beside it.NASA/JPL-Caltech NASA's InSight lander detected the biggest Mars quake ever, 16 times stronger than the prior record. InSight sensed the big quake just days before a power shortage put the robot in safe mode. Dust, a common problem for Mars robots, is threatening to shut down InSight this year. NASA has detected the largest Mars quake yet, a tremor nearly 16 times stronger than the previous record-holder.