Biggest structure ever found is a really cold hole

April 21, 2015 3:31 PM

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Researchers using NASA's Wide-Field Infrared Survey Explorer and a telescope in Maui have discovered what they are calling the "largest individual structure ever identified by humanity," reports the Royal Astronomical Society.

So large, in fact, that the only way to measure its size is in light-years—1.8 billion of them. The so-called supervoid is about 3 billion light-years away, a distance astrophysicists call "close" in the scheme of things.

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