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Astronomers Discover The Biggest Object in The Universe So Far

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Astronomers have recently announced the discovery of the BOSS Great Wall, a group of superclusters that span roughly 1 billion light-years across and represents the largest structure ever found in space.

The BOSS Great Wall, which sounds aptly named for its size but actually stands for the Baryon Oscillation Spectroscopic Survey, is a string of superclusters connected by gases lying roughly 4.5 to 6.5 billion light-years away from Earth.

Thanks to gravity, these superclusters stay connected and swirl together through the void of space. The megastructure discovered by a team from the Canary Islands Institute of Astrophysics is composed of 830 separate galaxies and has a mass 10,000 times greater than the Milky Way.

To put the scale of this structure into perspective, we orbit one single star, the Sun. Our galaxy, the Milky Way, has over 200 billion stars, just like our Sun, in it alone with an unknown amount of planets orbiting them.


Now, multiply that insane thought by 10,000 and you have the BOSS Great Wall. To our limited scope, it is effectively infinite.

However, not everyone agrees that the super structure should even be considered a structure at all. The argument is that these superclusters are not actually connected.


Instead, they have dips and gaps between them that are sort of linked by clouds of gas and dust. This loose connection causes a debate every time ‘great wall-like’ structures are found.

In the end, the arguments seem to boil down to personal definitions of what constitutes a single structure with most researchers agreeing that they are one.

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Pass it on: New Scientist

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