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Astronomers spot ‘cosmic web’ that sticks the universe together

The cosmic web responsible for “gluing” the far-flung galaxies of the universe together has been directly observed for the first time ever. Scientists using the European Southern Observatory’s Very Large Telescope were able to spot an ancient cluster of galaxies 12 billion light-years away that are linked together by a network of gas filaments. The cosmic web theory is central to current explanations of how the universe formed after the Big Bang. However, until this observation, there had only been indirect evidence to suggest it existed. Michele Fumagalli, an astrophysicist at Durham University and co-author of the work, said: “It is very exciting to clearly see for the first time multiple and extended filaments in the early ...