We are often left asking very basic questions to which we do not know the answer to; such as the fact that many of us do not know the largest structure in the universe. Today let us rank the top 9 largest cosmological structures in our known observable universe.
9. LQG: A large quasar group consisting of 5 quasars
8. Pisces–Cetus Supercluster Complex: It is about 1 billion light-years across.
7. Giant Void: It measures 1.3 billion light-years across
6. Great Wall: A sheet of galaxies more than 500 million light-years long and 200 million light-years wide
5. Clowes–Campusano LQG: Measures two billion light-years at its widest point
4. SSA22 Protocluster: A collection of galaxies that measures about 200 million light-years across.
3. U1.11: Measuring about 2.5 billion light-years across
2. Huge-LQG: Measured to be four billion light-years across
1. Hercules–Corona Borealis Great Wall: It measures 10 billion light years
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