Galaxies are strung along filaments in the vast cosmic web, which also contains enormous voids. Using the NASA/ESA/CSA James Webb Space Telescope, astronomers have discovered an early strand of this structure — a long, narrow filament of 10 galaxies that existed just 830 million years after the Big Bang. The 3 million light-year-long structure is anchored by a luminous quasar called J0305-3150. The same team has also probed the properties of...
