NASA rover captures an aurora from Mars surface for the first time

NASA's Perseverance rover has captured an aurora in the night sky for the first time from the Martian ground. Scientists have known for two decades that Mars' skies have auroras, too, but these curtains of undulating light had only been detected in ultraviolet — light that is invisible to the naked eye — until now. All previous Martian auroras were observed from orbiters in space. The result is a grainy portrait, shown farther down in this story, reminiscent of the snow one