Their own azimuthal equidistant double-sided projection, meanwhile, scores 0.881. “We believe it is the most accurate flat map of Earth yet,” the trio write.

Distribution of furrows (yellow lines) projected in azimuthal equidistant map centered at 20°S 180°W (plate A) and its exactly opposite point, 20°N, 0°W (plate B). White regions indicate the ...