This supercluster also borders a prominent void , the Taurus Void , and is part of the Perseus -- Pegasus Filament which stretches for roughly a billion light years .
Is currently the largest known structure in the Universe .
This supercluster also borders a prominent void , the Taurus Void , and is part of the Perseus -- Pegasus Filament which stretches for roughly a billion light years and is currently the largest known structure in the Universe .