Astronomers using the James Webb Space Telescope (JWST) have spotted tiny galaxies that may have driven a major transformation in the early universe.
Ultraviolet (UV) light shining from these small galaxies may have powered an epoch known as the Era of Reionization, clearing the fog of hydrogen gas that permeated the universe in its first billion years. Researchers presented the findings June 11 at the 246th meeting of the American Astronomical Society in Anchorage, Alaska.
