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The newfound LQC is composed of 73 quasars and spans about 1.6 billion light-years in most directions, though it is 4 billion light-years across at its widest point. To put that mind-boggling size into perspective, the disk of the Milky Way galaxy â home of Earth's solar system â is about 100,000 light-years wide.
A quasar jets energy in an illustration. A newfound quasar cluster is the universe's biggest known object. A quasar jets energy in an illustration. A newfound quasar cluster is the universe's biggest known object. Illustration courtesy M. Kornmesser, ESO Talk about a whopperâastronomers have discovered a structure in the universe so large that modern cosmological theory says it should not exist, a new study says. (Also see Giant 'Blob' Is Largest Thing in Universe [2006].).