The James Webb Space Telescope and the Chandra X-ray Observatory have captured the clearest image yet of a galaxy cluster in the making, seen when the universe was only one billion years old.
This stunning image showcases what astronomers think is the most distant galaxy protocluster ever found, and it holds a very important clue about the history of the universe.
Located 12.7 billion light-years away from Earth, the protocluster, dubbed JADES-ID1, appears in this image as a collection of glowing dots and specks embedded within a large blue cloud.
A protocluster is simply a galaxy cluster in its infancy. It is a region with a large number of young galaxies that are being pulled together by gravity, contained within a large cloud of hot gas. Galaxy clusters are vast collections of hundreds to thousands of galaxies that are held together by gravity, and a protocluster essentially shows how such a large structure forms and grows.
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