<img src=”https://naked-science.ru/wp-content/uploads/2025/03/jades00.jpg” alt=”The most ancient galaxy turned out to be mature and saturated with oxygen”/>In size in the sky, the oldest galaxies in the Universe are comparable to a grain of sand at arm’s length. Finding them was not easy, “deciphering” their light is an even more difficult task. In a new study, astronomers deduced the mass, metallicity and rate of star formation in the oldest galaxy discovered to date, JADES-GS-z14-0.