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What is the biggest void?

the Boötes Void Description. At nearly 330 million light-years in diameter (approximately 0.27% of the diameter of the observable Universe), or nearly 236,000 Mpc3 in volume, the Boötes Void is one of the largest known voids in the Universe, and is referred to as a supervoid. Its discovery was reported by Robert Kirshner et al.

en.wikipedia.org - Boötes Void - Wikipedia
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Enormous, approximately-spherical region of space containing very few galaxies

A map of the Boötes Void

The Boötes Void ( ) (colloquially referred to as the Great Nothing)[1] is an approximately spherical region of space found in the vicinity of the constellation Boötes, containing very few galaxies, hence its name. It is enormous, with a radius of 62 megaparsecs. Its centre is located at approximately right ascension 14h 50m and declination 46°.[2]

Description [ edit ]

At nearly 330 million light-years in diameter[3] (approximately 0.27% of the diameter of the observable Universe), or nearly 236,000 Mpc3 in volume, the Boötes Void is one of the largest known voids in the Universe, and is referred to as a supervoid. Its discovery was reported by Robert Kirshner et al. (1981) as part of a survey of galactic redshifts. The centre of the Boötes Void is approximately 700 million light-years from Earth.[4] Other astronomers soon discovered that the void contains a few galaxies. In 1987, J. Moody, Robert P. Kirshner, G. MacAlpine, and S. Gregory published their findings of eight galaxies in the void.[5] M. Strauss and John Huchra announced the discovery of three more galaxies in 1988, and Greg Aldering, G. Bothun, Robert P. Kirshner, and Ron Marzke announced the discovery of fifteen galaxies in 1989. By 1997, the Boötes Void was known to contain 60 galaxies in a space that would usually roughly have 2000. According to astronomer Greg Aldering, the scale of the void is such that "If the Milky Way had been in the centre of the Boötes Void, we wouldn't have known there were other galaxies until the 1960s."[6]

The Hercules Supercluster forms part of the near edge of the void.[2]

There are two pages published by the European Southern Observatory team that describe their investigation of dark globules, and Barnard 68 (B68) in particular.[7][8]

Origins [ edit ]

A map of galaxy voids

There are no major apparent inconsistencies between the existence of the Boötes Void and the Lambda-CDM model of cosmological evolution.[9] It has been theorized that the Boötes Void was formed from the merging of smaller voids, much like the way in which soap bubbles coalesce to form larger bubbles.[10] This would account for the small number of galaxies that populate a roughly tube-shaped region running through the middle of the void.[6]

Confusion with Barnard 68 [ edit ]

The Boötes Void has been often associated with images of Barnard 68,[citation needed] a dark nebula that does not allow light to pass through; however, the images of Barnard 68 are much darker than those observed of the Boötes Void, as the nebula is much closer and there are fewer stars in front of it, as well as its being a physical mass that blocks light passing through.

See also [ edit ]

References [ edit ]

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What makes a house feel dated?

Most likely, any vertical blinds in a house make it look a little drab. Other things that you'll find in a dated living room are heavy fabric curtains, out-of-date fabric designs, broken or discolored blinds, and fringed trim. Consider replacing any heavy materials with lightweight, natural fabrics like linen.

sanfrandesign.com - Things That Make Your House Look Dated | San Francisco Design

If you’ve looked around and realized your space is a bit more dated than you’d like, there are a few small, simple changes you can make to get things looking new again.

Tackle one room at a time

It might feel overwhelming to start the process of updating things. If this is the case for you, try tackling one room at a time. When you focus on revamping just one room, there are fewer decisions to make, and you can spend your time focusing on what you’d like to change. You may find that updating your house is easier when you approach it in manageable sections.

Turn to modern design

While modern or Scandinavian-style design is popular at the moment, it has also stood the test of time. It’s a design style that will look fresh for years to come. With its clean lines, minimalism, and monochromatic color palette, modern and Scandinavian-inspired furnishings are a smart investment for your home. Should you want to change the style in the future, you can add pieces here and there to update the style without feeling like you have to start from scratch. For these reasons, a modern design style is a great option for many people.

Hire the experts at San Francisco Design

Updating a house isn’t always an easy task. If you’re starting down the path of changing your outdated house, consider hiring an interior designer. When you hire an interior designer, they can manage the project quickly and efficiently. They bring fresh eyes and new ideas to the space that you might not have considered. Interior designers can help your project come to life and ensure you will have a functional, beautiful space. The experts at San Francisco Design can tackle any updating projects you’ve got up your sleeve.

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