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User:Rennadevoll/sandbox

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I was going to add more to this article and here are some ideas that I had;

I was planning on adding this to the introduction: Abell 222 is considered a galaxy cluster that holds thousands of galaxies together.

I was going to add a section about the Discovery of Dark Matter within Abell 222: Unseen matter that was warping space time is what made astronomers hypothesize that there is dark matter within Abell 222. Astronomers observed dark matter with Abell 222 by using images from the Japanese Subaru telescope.

I was going to add another section about Baryonic Matter: Astronomers have observed that there is a missing amount of baryonic. However, after observing gas that connects Abell 222 and Abell 223, scientists believe that baryonic matter is within the gas that bridges the two galaxy clusters. This was difficult to locate due to the fact that the gas had a very low density, which made it hard to detect. This discovery was made possible because of Abell 222’s location. It is within Earth’s line of sight, so scientists were able to see a strong concentration of this gas within a section of the sky.