The Sloan Great Wall is between 1.8–2.7 times longer than the CfA2 Great Wall of galaxies (discovered by Margaret Geller and John Huchra of Harvard University in 1989).
The Sloan Great Wall, discovered by researchers at the Sloan Digital Sky Survey, is about 1.8 to 2.7 times longer than the CfA2 Great Wall of galaxies, which was first identified by Margaret Geller and John Huchra from Harvard University in 1989.