The entire conglomeration is behind the Milky Way, in what astronomers quaintly call the zone of avoidance.

The South Pole Wall, however, is half the distance from the Earth to the Hercules Corona-Borealis Great Wall – 500 million light-years – astronomically close and was hidden by the brightness of the Milky Way in an area called the Zone of Avoidance, according to MIT.

The findings were reported in the latest issue of Astronomical Journal under the title 'The Parkes HI Zone of Avoidance Survey'.