NASA’s InSight Lander, a groundbreaking “robotic geologist” that touched down in the Red Planet’s Elysium Planitia back in November 2018, may be approaching its final transmissions as windblown dust has clogged its power supply. “My power’s really low, so this may be the last image I can send. Don’t worry about me though: my time here has been both productive and serene. If I can keep talking …