Scholars from Zhejiang Universe capture the time evolution of galactic winds in the spectra of compact, star-forming galaxies, revealing the escape sequence of ionizing radiation thought to be responsible for the reionization of the early Universe.
Unlike today, the early Universe was filled mostly with neutral hydrogen, formed from protons and electrons that combined shortly after the Big Bang. Observations of distant quasars reveal that most of this hydrogen was reionized within the first billion years—a period known as the Epoch of Reionization. Yet, the sources and evolution of reionization remain uncertain. Recent observations from...
2025-12-22
