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That stoppage happened during an epoch that occurred between about 150 million and 1 billion years after the Big Bang when it's believed the universe's first stars and galaxies formed.
Video from NASA shows two galaxies, about 80 million light-years away from Earth, forming the shape of "blood-soaked eyes."
Size (left) and distance (right) of a few well-known galaxies put to scale. There are an estimated 100 billion galaxies in all of the observable universe. [1] On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list).
A look at the biggest things in the universe, such as the cosmic web, which connects galaxies together along threads of dark matter, or the Lyman-alpha blob, which is a bubble containing countless galaxies. Also a look at super-galaxies, super massive black holes, "radio lobes", and the biggest void in space.
NASA’s Webb Space Telescope is finding bright, early galaxies that until now were hidden from view, including one that may have formed a mere 350 million years after the cosmic-creating Big Bang.
The stars move along random orbits with no preferred direction. These galaxies contain little or no interstellar dust, few star-forming regions, and older stars. [67]: 877–878 Elliptical galaxies may have been formed by other galaxies merging. [67]: 939
Intergalactic space is the physical space between galaxies. Studies of the large-scale distribution of galaxies show that the universe has a foam-like structure, with groups and clusters of galaxies lying along filaments that occupy about a tenth of the total space. The remainder forms cosmic voids that are mostly empty of galaxies. Typically ...
Scientists hope to eventually observe the first stars and galaxies formed following the creation of the universe 13.8 billion years ago.