EditorialThe calibration target for SHERLOC, one of the instruments aboard the Perseverance rover, features a slice of Martian meteorite. (NASA/JPL-Caltech via The New York Times)
EditorialThe calibration target for SHERLOC, one of the instruments aboard the Perseverance rover, features a slice of Martian meteorite. (NASA/JPL-Caltech via The New York Times)