User:Geo2145379
Although this structure may look grand in size to us, we may not be able to call it one solid structure just yet. This part of the sky has five times as many galaxies as an average space in the sky, but we know the universe is still expanding. This brings about the question of whether they are all moving together or are slowly separating as the universe expands.[1]
- ^ Sokol, Joshua. "Billion-light-year galactic wall may be largest object in cosmos". New Scientist. Retrieved 2016-12-05.