Covered in Martian Muck, NASA's InSight Lander Tries to Tidy Itself Up

The dust piled up everywhere. Pushed around by the Martian winds, it stifled the InSight lander, whose solar panels--the source of its power--have been coated in red grime. Now, NASA has announced a step in the right direction for the sedentary probe: By commanding it to drop dirt on top of the dust, they managed to...