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Earth's Full Address: 'Solar System, Milky Way, Laniakea'

1/19/2017

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Two years ago, a group of astronomers agreed that our Milky Way Galaxy is part of a ‘super-cluster.’ The Laniakea Supercluster is home to the Milky Way plus 100,000 other nearby galaxies. It was defined in September 2014, when a group of astronomers including R. Brent Tully of the University of Hawaii and Hélène Courtois of the University of Lyon published a new way of defining superclusters according to the relative velocities of galaxies. (It had formerly been said that we were part of the Virgo Supercluster, which is now an ‘appendage’). The name Laniakea means ‘immense heaven’ in Hawaiian, in honour of the Polynesian navigators who used knowledge of the heavens to navigate the Pacific Ocean.

Perhaps an even greater discovery is the fact that ‘something’ in the universe is ‘pulling’ our galaxy, the Milky Way, and other galaxies towards IT at an incredible speed of 22 million kilometres per hour. This unknown force which has been dubbed the ‘Great Attractor’ is pulling our galaxy and everything around it towards a particular point in space, located approximately 250 million light-years away. Basically, the Great Attractor is considered by researchers as a ‘gravitational anomaly’ located within the vicinity of the Hydra-Centaurus Supercluster at the center of the Laniakea Supercluster. Adding to the mystery is the fact that the Great Attractor happens to lie in a direction in the sky referred to as the ‘Zone of Avoidance’. Towards that direction, there is so much dust and gas that our satellites and telescopes can’t see very far in the visible spectrum.

The Laniakea consists of four subparts, and the entire supercluster consists of approximately 300 to 500 known galaxy clusters and groups. The real number may be much larger because some of these are traversing the Zone of Avoidance, making them essentially undetectable. This of course means it contains hundreds of billions of Suns like our own.

Superclusters are some of the universe's largest structures and have boundaries that are difficult to define, especially from the inside. The team used radio telescopes to map the motions of a large collection of local galaxies. This method is superior to merely mapping the location of matter, because it enables scientists to build a map of uncharted regions of the Universe. It relies on detecting the galaxies' influence, rather than seeing them directly. Unlike its constituent clusters, Laniakea is not gravitationally bound and is projected to be torn apart by dark energy. Moreover, the galaxies' motions reflect the distribution of all matter, not just that which is visible in our telescopes — including dark matter.

Discounting cosmic expansion, the researchers’ map shows flow lines down which galaxies creep under the effect of gravity in their local region. Based on this, the team defines the edge of a supercluster as the boundary at which these flow lines diverge. On one side of the line, galaxies flow towards one gravitational centre; beyond it, they flow towards another. It’s like a watershed, where it flows either to the left or right.

Credit for Images at Top of Page
http://www.ancient-code.com/researchers-map-8000-galaxies-and-make-an-amazing-discovery/


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    Author

    Paul V Young is a freelance writer based in Brisbane Australia. His articles appear in magazines such as New Dawn and Atlantis Rising.

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LIST OF ARTICLES - PLEASE CLICK ON BUTTONS AT TOP MARKED "ARTICLES"
Apollo's Legacy   
http://www.solarancestor.com/apollos-legacy.html
Black Mountain    
http://www.solarancestor.com/black-mountain.html
Dimension Hacking http://www.solarancestor.com/dimension-hacking.html
Eye of the Sun-Runner   
http://www.solarancestor.com/the-eye-of-the-sunrunner.html
Each of Us Has a Star
   https://www.solarancestor.com/each-has-a-star.html 
Heliocentricity                   http://www.solarancestor.com/heliocentricity.html
Interstellar Interference
http://www.solarancestor.com/latest-nov-2015-interstellar-interference.html
Invisible Beings                http://www.solarancestor.com/invisible-beings.html
Life Patterns & Blood Lines   
http://www.solarancestor.com/life-patterns--blood-lines.html
Locating the Sun-Gates Part I    http://www.solarancestor.com/locating-the-sun-gates.html
Locating the Sun-Gates Part II   
http://www.solarancestor.com/locating-the-sun-gates-part-ii.html
Temporary Civilizations   
http://www.solarancestor.com/temporary-civilizations.html

The Sun and the Secret of the Golden Flower https://www.solarancestor.com/the-sun-and-the-secret-of-the-golden-flower.html
The Way of the Golden Sphere http://www.solarancestor.com/the-golden-sphere.html
​Tuatha Dé & Sidhe        http://www.solarancestor.com/the-tuatha-deacute--sidhe.html
Viracocha                http://www.solarancestor.com/viracocha.html