Astronomers discover largest known structure in the universe is ... a big hole
by Hannah Devlin, science correspondent from on (#7EE3)
Scientists searching for an explanation for an unusually cool area of sky instead discovered a supervoid: an empty spherical blob 1.8 billion light years across
Astronomers have discovered what they say is the largest known structure in the universe: an incredibly big hole.
The "supervoid", as it is known, is a spherical blob 1.8 billion light years across that is distinguished by its unusual emptiness.
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