"It's really amazing how big this feature is," study lead author Jeffery Andrews-Hanna, a scientist at the Colorado School of Mines, told BBC News. "It covers about 17% of the surface of the Moon. And if you think about that in terms relative to the size of the Earth, it covers an area equivalent to
Prof Jeffery Andrews-Hanna further mentioned What were seeing is a clever trick of spherical geometry. For structures on this scale, a polygon with 120-degree angles at the corners actually has four sides instead of six,