Write 100 words on bootes void?
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Stare into the night sky and you can’t help being amazed by the sheer scale of the universe. Look for Sirius, the brightest star in the sky. That’s 8.6 light years away. Polaris, the North Star, sits 431 light years from us, and the faintly visible Andromeda galaxy lies 2.6 million light years from Earth. These are distances that boggle the mind, yet we’re only talking about the scenery in our cosmic backyard.
Is this magnificent view typical, the sort of spectacle you’d see from anywhere in the universe? Not at all. From the middle of the Boötes Void, for instance, the universe appears a very different, and much darker, place.
The Boötes Void is a giant hole in the universe some 350 million light years across, a place where galaxies, for the most part, never formed. It lies about a billion light years from Earth in the direction of the constellation Boötes, after which it was named when it was discovered in 1981 by Robert Kirshner of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, and colleagues.
What makes this expanse of nothingness so interesting? The very existence of the Boötes Void is a mystery, one that is challenging our standard story of the universe’s past. The pattern of galaxies and voids is thought to arise from tiny quantum fluctuations in the fabric of space-time at nearly the beginning of time that have been stretched to galactic proportions as the universe expanded.
Is this magnificent view typical, the sort of spectacle you’d see from anywhere in the universe? Not at all. From the middle of the Boötes Void, for instance, the universe appears a very different, and much darker, place.
The Boötes Void is a giant hole in the universe some 350 million light years across, a place where galaxies, for the most part, never formed. It lies about a billion light years from Earth in the direction of the constellation Boötes, after which it was named when it was discovered in 1981 by Robert Kirshner of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, and colleagues.
What makes this expanse of nothingness so interesting? The very existence of the Boötes Void is a mystery, one that is challenging our standard story of the universe’s past. The pattern of galaxies and voids is thought to arise from tiny quantum fluctuations in the fabric of space-time at nearly the beginning of time that have been stretched to galactic proportions as the universe expanded.
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